更新群二维码

Merge branch 'feature' into main
打包0.5.2，去除导出json数据中的uid字段
2026-02-17 22:08:25 +08:00 · 2023-04-06 08:47:31 +08:00 · 2023-04-06 08:46:54 +08:00 · 2023-04-06 08:45:43 +08:00 · 2023-04-05 21:22:39 +08:00 · 2023-04-05 16:47:06 +08:00
335 changed files with 58340 additions and 14531 deletions
--- a/.gitignore
+++ b/.gitignore
@@ -1,3 +1,3 @@
 node_modules
 .DS_Store
-package-lock.json
+dist_electron
--- a/README.md
+++ b/README.md
--- a/docs/assets/1.gif
+++ b/docs/assets/1.gif
--- a/docs/assets/2.gif
+++ b/docs/assets/2.gif
--- a/docs/assets/2021-07-21-19-54-48.gif
+++ b/docs/assets/2021-07-21-19-54-48.gif
--- a/docs/assets/3.gif
+++ b/docs/assets/3.gif
--- a/docs/assets/image-20210717174716810.png
+++ b/docs/assets/image-20210717174716810.png
--- a/docs/assets/image-20210717202607786.png
+++ b/docs/assets/image-20210717202607786.png
--- a/docs/assets/image-20210717210355763.png
+++ b/docs/assets/image-20210717210355763.png
--- a/docs/assets/image-20210717224527681.png
+++ b/docs/assets/image-20210717224527681.png
--- a/docs/assets/image-20210717230604086.png
+++ b/docs/assets/image-20210717230604086.png
--- a/docs/assets/image-20210717230805200.png
+++ b/docs/assets/image-20210717230805200.png
--- a/docs/assets/image-20210717230808662.png
+++ b/docs/assets/image-20210717230808662.png
--- a/docs/assets/image-20210718083006111.png
+++ b/docs/assets/image-20210718083006111.png
--- a/docs/assets/image-20210718083616076.png
+++ b/docs/assets/image-20210718083616076.png
--- a/docs/assets/image-20210718092817830.png
+++ b/docs/assets/image-20210718092817830.png
--- a/docs/assets/image-20210718102434530.png
+++ b/docs/assets/image-20210718102434530.png
--- a/docs/assets/image-20210718110652705.png
+++ b/docs/assets/image-20210718110652705.png
--- a/docs/assets/image-20210718111334085.png
+++ b/docs/assets/image-20210718111334085.png
--- a/docs/assets/image-20210718134525691.png
+++ b/docs/assets/image-20210718134525691.png
--- a/docs/assets/image-20210718184835414.png
+++ b/docs/assets/image-20210718184835414.png
--- a/docs/assets/image-20210718191124627.png
+++ b/docs/assets/image-20210718191124627.png
--- a/docs/assets/image-20210718221814590.png
+++ b/docs/assets/image-20210718221814590.png
--- a/docs/assets/image-20210718222150055.png
+++ b/docs/assets/image-20210718222150055.png
--- a/docs/assets/image-20210718222612078.png
+++ b/docs/assets/image-20210718222612078.png
--- a/docs/assets/image-20210720191943989.png
+++ b/docs/assets/image-20210720191943989.png
--- a/docs/assets/image-20210720192008277.png
+++ b/docs/assets/image-20210720192008277.png
--- a/docs/assets/image-20210720200816281.png
+++ b/docs/assets/image-20210720200816281.png
--- a/docs/assets/image-20210721183307656.png
+++ b/docs/assets/image-20210721183307656.png
--- a/docs/assets/image-20210721183340310.png
+++ b/docs/assets/image-20210721183340310.png
--- a/docs/assets/image-20210721183823754.png
+++ b/docs/assets/image-20210721183823754.png
--- a/docs/assets/image-20210721184140488.png
+++ b/docs/assets/image-20210721184140488.png
--- a/docs/assets/image-20210721185453825.png
+++ b/docs/assets/image-20210721185453825.png
--- a/docs/assets/image-20210721190700979.png
+++ b/docs/assets/image-20210721190700979.png
--- a/docs/assets/swdt.jpg
+++ b/docs/assets/swdt.jpg
--- a/docs/web思维导图实现的技术点分析.md
+++ b/docs/web思维导图实现的技术点分析.md
--- a/index.html
+++ b/index.html
@@ -1 +1 @@
-<!DOCTYPE html><html lang=""><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1"><title>一个简单的web思维导图实现</title><link href="dist/js/chunk-2d20ec02.81d632f4.js" rel="prefetch"><link href="dist/js/chunk-2d216b67.228f2009.js" rel="prefetch"><link href="dist/js/chunk-35b0a040.cb76da7d.js" rel="prefetch"><link href="dist/css/app.c8de1c03.css" rel="preload" as="style"><link href="dist/css/chunk-vendors.faba1249.css" rel="preload" as="style"><link href="dist/js/app.9bc33d3c.js" rel="preload" as="script"><link href="dist/js/chunk-vendors.ce9e5522.js" rel="preload" as="script"><link href="dist/css/chunk-vendors.faba1249.css" rel="stylesheet"><link href="dist/css/app.c8de1c03.css" rel="stylesheet"></head><body><noscript><strong>We're sorry but thoughts doesn't work properly without JavaScript enabled. Please enable it to continue.</strong></noscript><div id="app"></div><script src="dist/js/chunk-vendors.ce9e5522.js"></script><script src="dist/js/app.9bc33d3c.js"></script></body></html>
+<!DOCTYPE html><html lang=""><head><meta charset="utf-8"><meta http-equiv="X-UA-Compatible" content="IE=edge"><meta name="viewport" content="width=device-width,initial-scale=1"><link rel="icon" href="./dist/logo.png"><title>一个简单的web思维导图实现</title><link href="dist/js/chunk-2d0a3179.05d77cdf.js" rel="prefetch"><link href="dist/js/chunk-2d0a514a.7623bd23.js" rel="prefetch"><link href="dist/js/chunk-2d0aa579.0b1c8d8d.js" rel="prefetch"><link href="dist/js/chunk-2d0aa978.040c6f5c.js" rel="prefetch"><link href="dist/js/chunk-2d0ab10b.4d871bf6.js" rel="prefetch"><link href="dist/js/chunk-2d0abe0f.ae972b36.js" rel="prefetch"><link href="dist/js/chunk-2d0b1c6f.7fcfc285.js" rel="prefetch"><link href="dist/js/chunk-2d0b361e.b094b87c.js" rel="prefetch"><link href="dist/js/chunk-2d0b91e5.34207f33.js" rel="prefetch"><link href="dist/js/chunk-2d0b92c3.ade5a7e0.js" rel="prefetch"><link href="dist/js/chunk-2d0ba309.03c55a34.js" rel="prefetch"><link href="dist/js/chunk-2d0bd54e.db6065c6.js" rel="prefetch"><link href="dist/js/chunk-2d0be174.1ffa155d.js" rel="prefetch"><link href="dist/js/chunk-2d0c0a44.f061b30d.js" rel="prefetch"><link href="dist/js/chunk-2d0c14fc.17d4f60a.js" rel="prefetch"><link href="dist/js/chunk-2d0c18d8.8d576b5f.js" rel="prefetch"><link href="dist/js/chunk-2d0c191e.52b68dc1.js" rel="prefetch"><link href="dist/js/chunk-2d0c1a01.7cb4182f.js" rel="prefetch"><link href="dist/js/chunk-2d0c20be.9e66ac04.js" rel="prefetch"><link href="dist/js/chunk-2d0d5cb9.c67e6ecf.js" rel="prefetch"><link href="dist/js/chunk-2d0d9fbc.5dd106cf.js" rel="prefetch"><link href="dist/js/chunk-2d0da701.6c0d2c1e.js" rel="prefetch"><link href="dist/js/chunk-2d0dad5f.cda8cb71.js" rel="prefetch"><link href="dist/js/chunk-2d0db0f2.32d1bf7e.js" rel="prefetch"><link href="dist/js/chunk-2d0dd3b1.cc328c92.js" rel="prefetch"><link href="dist/js/chunk-2d0dddce.836132f8.js" rel="prefetch"><link href="dist/js/chunk-2d0ddf37.90fa5d56.js" rel="prefetch"><link href="dist/js/chunk-2d0de01b.00dad103.js" rel="prefetch"><link href="dist/js/chunk-2d0e2326.3ce481e5.js" rel="prefetch"><link href="dist/js/chunk-2d0e268c.204b5aa4.js" rel="prefetch"><link href="dist/js/chunk-2d0e5089.a4640577.js" rel="prefetch"><link href="dist/js/chunk-2d0e9742.bd5197f5.js" rel="prefetch"><link href="dist/js/chunk-2d0f026c.bf20a8ff.js" rel="prefetch"><link href="dist/js/chunk-2d2082b9.c7c6517f.js" rel="prefetch"><link href="dist/js/chunk-2d208ffa.b2a14327.js" rel="prefetch"><link href="dist/js/chunk-2d20ec02.917aff76.js" rel="prefetch"><link href="dist/js/chunk-2d20f68f.e02106a0.js" rel="prefetch"><link href="dist/js/chunk-2d210a7a.e60ccf9b.js" rel="prefetch"><link href="dist/js/chunk-2d216004.0615d324.js" rel="prefetch"><link href="dist/js/chunk-2d217907.3772894a.js" rel="prefetch"><link href="dist/js/chunk-2d226d0a.5947204c.js" rel="prefetch"><link href="dist/js/chunk-2d2299c3.0bdd83ab.js" rel="prefetch"><link href="dist/js/chunk-2d22bd06.a4be9e7c.js" rel="prefetch"><link href="dist/js/chunk-2d2308b0.4fa18681.js" rel="prefetch"><link href="dist/js/chunk-2d238428.61fffbf5.js" rel="prefetch"><link href="dist/js/chunk-3a2f3e67.13278516.js" rel="prefetch"><link href="dist/css/app.ed842be8.css" rel="preload" as="style"><link href="dist/css/chunk-vendors.c097b26d.css" rel="preload" as="style"><link href="dist/js/app.ea7dd27a.js" rel="preload" as="script"><link href="dist/js/chunk-vendors.d36f5bd6.js" rel="preload" as="script"><link href="dist/css/chunk-vendors.c097b26d.css" rel="stylesheet"><link href="dist/css/app.ed842be8.css" rel="stylesheet"></head><body><noscript><strong>We're sorry but thoughts doesn't work properly without JavaScript enabled. Please enable it to continue.</strong></noscript><div id="app"></div><script src="dist/js/chunk-vendors.d36f5bd6.js"></script><script src="dist/js/app.ea7dd27a.js"></script></body></html>
--- a/qrcode.jpg
+++ b/qrcode.jpg
--- a/simple-mind-map/.eslintrc.js
+++ b/simple-mind-map/.eslintrc.js
@@ -0,0 +1,17 @@
+module.exports = {
+    "env": {
+        "browser": true,
+        "es2021": true
+    },
+    "extends": "eslint:recommended",
+    "overrides": [
+    ],
+    "parserOptions": {
+        "parser": 'babel-eslint',
+        "ecmaVersion": 12,
+        "sourceType": "module",
+        "allowImportExportEverywhere": true
+    },
+    "rules": {
+    }
+}
--- a/simple-mind-map/.prettierignore
+++ b/simple-mind-map/.prettierignore
@@ -0,0 +1,10 @@
+src/assets
+*/.DS_Store
+dist
+example
+node_modules
+*.json
+*.md
+.eslintrc.js
+.prettierignore
+.prettierrc
--- a/simple-mind-map/.prettierrc
+++ b/simple-mind-map/.prettierrc
@@ -0,0 +1,5 @@
+semi: false
+singleQuote: true
+printWidth: 80
+trailingComma: 'none'
+arrowParens: 'avoid'
--- a/simple-mind-map/dist/img/blueSky.3c7f8ccb.jpg
+++ b/simple-mind-map/dist/img/blueSky.3c7f8ccb.jpg
--- a/simple-mind-map/dist/img/brainImpairedPink.511fee22.jpg
+++ b/simple-mind-map/dist/img/brainImpairedPink.511fee22.jpg
--- a/simple-mind-map/dist/img/catalogOrganization.380bb277.jpg
+++ b/simple-mind-map/dist/img/catalogOrganization.380bb277.jpg
--- a/simple-mind-map/dist/img/classic.733f273c.jpg
+++ b/simple-mind-map/dist/img/classic.733f273c.jpg
--- a/simple-mind-map/dist/img/classic2.cdfe2a8d.jpg
+++ b/simple-mind-map/dist/img/classic2.cdfe2a8d.jpg
--- a/simple-mind-map/dist/img/classic3.19d6c347.jpg
+++ b/simple-mind-map/dist/img/classic3.19d6c347.jpg
--- a/simple-mind-map/dist/img/classic4.087902fc.jpg
+++ b/simple-mind-map/dist/img/classic4.087902fc.jpg
--- a/simple-mind-map/dist/img/classicBlue.4b8243c6.jpg
+++ b/simple-mind-map/dist/img/classicBlue.4b8243c6.jpg
--- a/simple-mind-map/dist/img/classicGreen.c2ae7bde.jpg
+++ b/simple-mind-map/dist/img/classicGreen.c2ae7bde.jpg
--- a/simple-mind-map/dist/img/dark.894c1d36.jpg
+++ b/simple-mind-map/dist/img/dark.894c1d36.jpg
--- a/simple-mind-map/dist/img/dark2.c49dc11c.jpg
+++ b/simple-mind-map/dist/img/dark2.c49dc11c.jpg
--- a/simple-mind-map/dist/img/default.1312a3ba.jpg
+++ b/simple-mind-map/dist/img/default.1312a3ba.jpg
--- a/simple-mind-map/dist/img/earthYellow.c35e546d.jpg
+++ b/simple-mind-map/dist/img/earthYellow.c35e546d.jpg
--- a/simple-mind-map/dist/img/freshGreen.0e344e3e.jpg
+++ b/simple-mind-map/dist/img/freshGreen.0e344e3e.jpg
--- a/simple-mind-map/dist/img/freshRed.1c5bde77.jpg
+++ b/simple-mind-map/dist/img/freshRed.1c5bde77.jpg
--- a/simple-mind-map/dist/img/gold.3093b3c8.jpg
+++ b/simple-mind-map/dist/img/gold.3093b3c8.jpg
--- a/simple-mind-map/dist/img/greenLeaf.6789e8fc.jpg
+++ b/simple-mind-map/dist/img/greenLeaf.6789e8fc.jpg
--- a/simple-mind-map/dist/img/logicalStructure.624920ce.jpg
+++ b/simple-mind-map/dist/img/logicalStructure.624920ce.jpg
--- a/simple-mind-map/dist/img/mindMap.223b38aa.jpg
+++ b/simple-mind-map/dist/img/mindMap.223b38aa.jpg
--- a/simple-mind-map/dist/img/minions.c2a93f9e.jpg
+++ b/simple-mind-map/dist/img/minions.c2a93f9e.jpg
--- a/simple-mind-map/dist/img/mint.7933f60a.jpg
+++ b/simple-mind-map/dist/img/mint.7933f60a.jpg
--- a/simple-mind-map/dist/img/organizationStructure.8064f4da.jpg
+++ b/simple-mind-map/dist/img/organizationStructure.8064f4da.jpg
--- a/simple-mind-map/dist/img/pinkGrape.32c2587b.jpg
+++ b/simple-mind-map/dist/img/pinkGrape.32c2587b.jpg
--- a/simple-mind-map/dist/img/romanticPurple.7607e58a.jpg
+++ b/simple-mind-map/dist/img/romanticPurple.7607e58a.jpg
--- a/simple-mind-map/dist/img/skyGreen.4cfa829a.jpg
+++ b/simple-mind-map/dist/img/skyGreen.4cfa829a.jpg
--- a/simple-mind-map/dist/img/vitalityOrange.5dd9014f.jpg
+++ b/simple-mind-map/dist/img/vitalityOrange.5dd9014f.jpg
--- a/simple-mind-map/example/exampleData.js
+++ b/simple-mind-map/example/exampleData.js
@@ -900,6 +900,17 @@ const data5 = {
    }
 }

+// 富文本数据v0.4.0+，需要使用RichText插件才支持富文本编辑
+const richTextData = {
+    "root": {
+        "data": {
+            "text": "<a href='http://lxqnsys.com/' target='_blank'>理想去年实验室</a>",
+            "richText": true
+        },
+        "children": []
+    }
+}
+
 const rootData = {
    "root": {
        "data": {
@@ -925,5 +936,6 @@ export default {
    "layout": "logicalStructure",
    // "layout": "mindMap",
    // "layout": "catalogOrganization"
-    // "layout": "organizationStructure"
+    // "layout": "organizationStructure",
+    "config": {}
 }
--- a/simple-mind-map/example/exportFullData.json
+++ b/simple-mind-map/example/exportFullData.json
@@ -31,6 +31,12 @@
                    "isActive": false
                },
                "children": []
+            }, {
+                "data": {
+                    "text": "<a href='http://lxqnsys.com/' target='_blank'>理想去年实验室</a>",
+                    "richText": true
+                },
+                "children": []
            }]
        }]
    },
@@ -62,5 +68,6 @@
            "sx": 0,
            "sy": 0
        }
-    }
+    },
+    "config": {}
 }
--- a/simple-mind-map/full.js
+++ b/simple-mind-map/full.js
@@ -0,0 +1,26 @@
+import MindMap from './index'
+import MiniMap from './src/MiniMap.js'
+import Watermark from './src/Watermark.js'
+import KeyboardNavigation from './src/KeyboardNavigation.js'
+import Export from './src/Export.js'
+import Drag from './src/Drag.js'
+import Select from './src/Select.js'
+import AssociativeLine from './src/AssociativeLine'
+import RichText from './src/RichText'
+import xmind from './src/parse/xmind.js'
+import markdown from './src/parse/markdown.js'
+
+MindMap.xmind = xmind
+MindMap.markdown = markdown
+
+MindMap
+  .usePlugin(MiniMap)
+  .usePlugin(Watermark)
+  .usePlugin(Drag)
+  .usePlugin(KeyboardNavigation)
+  .usePlugin(Export)
+  .usePlugin(Select)
+  .usePlugin(AssociativeLine)
+  .usePlugin(RichText)
+
+export default MindMap
--- a/simple-mind-map/index.js
+++ b/simple-mind-map/index.js
@@ -7,427 +7,451 @@ import Style from './src/Style'
 import KeyCommand from './src/KeyCommand'
 import Command from './src/Command'
 import BatchExecution from './src/BatchExecution'
-import Export from './src/Export'
-import Select from './src/Select'
-import Drag from './src/Drag'
-import MiniMap from './src/MiniMap';
-import {
-    layoutValueList
-} from './src/utils/constant'
-import {
-    SVG
-} from '@svgdotjs/svg.js'
-import xmind from './src/parse/xmind'
-import { simpleDeepClone } from './src/utils';
+import { layoutValueList, CONSTANTS } from './src/utils/constant'
+import { SVG } from '@svgdotjs/svg.js'
+import { simpleDeepClone } from './src/utils'
+import defaultTheme from './src/themes/default'

 // 默认选项配置
 const defaultOpt = {
-    // 是否只读
-    readonly: false,
-    // 布局
-    layout: 'logicalStructure',
-    // 主题
-    theme: 'default', // 内置主题：default（默认主题）
-    // 主题配置，会和所选择的主题进行合并
-    themeConfig: {},
-    // 放大缩小的增量比例
-    scaleRatio: 0.1,
-    // 最多显示几个标签
-    maxTag: 5,
-    // 导出图片时的内边距
-    exportPadding: 20,
-    // 展开收缩按钮尺寸
-    expandBtnSize: 20,
-    // 节点里图片和文字的间距
-    imgTextMargin: 5,
-    // 节点里各种文字信息的间距，如图标和文字的间距
-    textContentMargin: 2,
-    // 多选节点时鼠标移动到边缘时的画布移动偏移量
-    selectTranslateStep: 3,
-    // 多选节点时鼠标移动距边缘多少距离时开始偏移
-    selectTranslateLimit: 20,
-    // 自定义节点备注内容显示
-    customNoteContentShow: null
-    /*
+  // 是否只读
+  readonly: false,
+  // 布局
+  layout: CONSTANTS.LAYOUT.LOGICAL_STRUCTURE,
+  // 主题
+  theme: 'default', // 内置主题：default（默认主题）
+  // 主题配置，会和所选择的主题进行合并
+  themeConfig: {},
+  // 放大缩小的增量比例
+  scaleRatio: 0.1,
+  // 最多显示几个标签
+  maxTag: 5,
+  // 导出图片时的内边距
+  exportPadding: 20,
+  // 展开收缩按钮尺寸
+  expandBtnSize: 20,
+  // 节点里图片和文字的间距
+  imgTextMargin: 5,
+  // 节点里各种文字信息的间距，如图标和文字的间距
+  textContentMargin: 2,
+  // 多选节点时鼠标移动到边缘时的画布移动偏移量
+  selectTranslateStep: 3,
+  // 多选节点时鼠标移动距边缘多少距离时开始偏移
+  selectTranslateLimit: 20,
+  // 自定义节点备注内容显示
+  customNoteContentShow: null,
+  /*
        {
            show(){},
            hide(){}
        }
    */
+  // 是否开启节点自由拖拽
+  enableFreeDrag: false,
+  // 水印配置
+  watermarkConfig: {
+    text: '',
+    lineSpacing: 100,
+    textSpacing: 100,
+    angle: 30,
+    textStyle: {
+      color: '#999',
+      opacity: 0.5,
+      fontSize: 14
+    }
+  },
+  // 达到该宽度文本自动换行
+  textAutoWrapWidth: 500,
+  // 自定义鼠标滚轮事件处理
+  // 可以传一个函数，回调参数为事件对象
+  customHandleMousewheel: null,
+  // 鼠标滚动的行为，如果customHandleMousewheel传了自定义函数，这个属性不生效
+  mousewheelAction: CONSTANTS.MOUSE_WHEEL_ACTION.ZOOM,// zoom（放大缩小）、move（上下移动）
+  // 当mousewheelAction设为move时，可以通过该属性控制鼠标滚动一下视图移动的步长，单位px
+  mousewheelMoveStep: 100,
+  // 默认插入的二级节点的文字
+  defaultInsertSecondLevelNodeText: '二级节点',
+  // 默认插入的二级以下节点的文字
+  defaultInsertBelowSecondLevelNodeText: '分支主题',
+  // 展开收起按钮的颜色
+  expandBtnStyle: {
+    color: '#808080',
+    fill: '#fff'
+  },
+  // 自定义展开收起按钮的图标
+  expandBtnIcon: {
+    open: '',// svg字符串
+    close: ''
+  },
+  // 是否只有当鼠标在画布内才响应快捷键事件
+  enableShortcutOnlyWhenMouseInSvg: true,
+  // 是否开启节点动画过渡
+  enableNodeTransitionMove: true,
+  // 如果开启节点动画过渡，可以通过该属性设置过渡的时间，单位ms
+  nodeTransitionMoveDuration: 300
 }

-/** 
- * javascript comment 
- * @Author: 王林25 
- * @Date: 2021-04-06 11:18:47 
- * @Desc: 思维导图 
- */
+//  思维导图
 class MindMap {
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-06 11:19:01 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        // 合并选项
-        this.opt = this.handleOpt(merge(defaultOpt, opt))
+  //  构造函数
+  constructor(opt = {}) {
+    // 合并选项
+    this.opt = this.handleOpt(merge(defaultOpt, opt))

-        // 容器元素
-        this.el = this.opt.el
-        this.elRect = this.el.getBoundingClientRect()
+    // 容器元素
+    this.el = this.opt.el
+    this.elRect = this.el.getBoundingClientRect()

-        // 画布宽高
-        this.width = this.elRect.width
-        this.height = this.elRect.height
+    // 画布宽高
+    this.width = this.elRect.width
+    this.height = this.elRect.height

-        // 画布
-        this.svg = SVG().addTo(this.el).size(this.width, this.height)
-        this.draw = this.svg.group()
+    // 画布
+    this.svg = SVG().addTo(this.el).size(this.width, this.height)
+    this.draw = this.svg.group()

-        // 节点id
-        this.uid = 0
+    // 节点id
+    this.uid = 1

-        // 初始化主题
-        this.initTheme()
+    // 初始化主题
+    this.initTheme()

-        // 事件类
-        this.event = new Event({
-            mindMap: this
-        })
+    // 事件类
+    this.event = new Event({
+      mindMap: this
+    })

-        // 按键类
-        this.keyCommand = new KeyCommand({
-            mindMap: this
-        })
+    // 按键类
+    this.keyCommand = new KeyCommand({
+      mindMap: this
+    })

-        // 命令类
-        this.command = new Command({
-            mindMap: this
-        })
+    // 命令类
+    this.command = new Command({
+      mindMap: this
+    })

-        // 渲染类
-        this.renderer = new Render({
-            mindMap: this
-        })
+    // 渲染类
+    this.renderer = new Render({
+      mindMap: this
+    })

-        // 视图操作类
-        this.view = new View({
-            mindMap: this,
-            draw: this.draw
-        })
+    // 视图操作类
+    this.view = new View({
+      mindMap: this,
+      draw: this.draw
+    })

-        // 小地图类
-        this.miniMap = new MiniMap({
-            mindMap: this
-        })
+    // 批量执行类
+    this.batchExecution = new BatchExecution()

-        // 导出类
-        this.doExport = new Export({
-            mindMap: this
-        })
+    // 注册插件
+    MindMap.pluginList.forEach((plugin) => {
+      this.initPlugin(plugin)
+    })

-        // 选择类
-        this.select = new Select({
-            mindMap: this
-        })
+    // 初始渲染
+    this.render()
+    setTimeout(() => {
+      this.command.addHistory()
+    }, 0)
+  }

-        // 拖动类
-        this.drag = new Drag({
-            mindMap: this
-        })
-
-        // 批量执行类
-        this.batchExecution = new BatchExecution()
-
-        // 初始渲染
-        this.reRender()
-        setTimeout(() => {
-            this.command.addHistory()
-        }, 0)
+  //  配置参数处理
+  handleOpt(opt) {
+    // 检查布局配置
+    if (!layoutValueList.includes(opt.layout)) {
+      opt.layout = CONSTANTS.LAYOUT.LOGICAL_STRUCTURE
    }
+    // 检查主题配置
+    opt.theme = opt.theme && theme[opt.theme] ? opt.theme : 'default'
+    return opt
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-01 22:15:22 
-     * @Desc: 配置参数处理 
-     */
-    handleOpt(opt) {
-        // 检查布局配置
-        if (!layoutValueList.includes(opt.layout)) {
-            opt.layout = 'logicalStructure'
+  //  渲染，部分渲染
+  render(callback, source = '') {
+    this.batchExecution.push('render', () => {
+      this.initTheme()
+      this.renderer.reRender = false
+      this.renderer.render(callback, source)
+    })
+  }
+
+  //  重新渲染
+  reRender(callback) {
+    this.batchExecution.push('render', () => {
+      this.draw.clear()
+      this.initTheme()
+      this.renderer.reRender = true
+      this.renderer.render(callback)
+    })
+  }
+
+  //  容器尺寸变化，调整尺寸
+  resize() {
+    this.elRect = this.el.getBoundingClientRect()
+    this.width = this.elRect.width
+    this.height = this.elRect.height
+    this.svg.size(this.width, this.height)
+  }
+
+  //  监听事件
+  on(event, fn) {
+    this.event.on(event, fn)
+  }
+
+  //  触发事件
+  emit(event, ...args) {
+    this.event.emit(event, ...args)
+  }
+
+  //  解绑事件
+  off(event, fn) {
+    this.event.off(event, fn)
+  }
+
+  //  设置主题
+  initTheme() {
+    // 合并主题配置
+    this.themeConfig = merge(theme[this.opt.theme], this.opt.themeConfig)
+    // 设置背景样式
+    Style.setBackgroundStyle(this.el, this.themeConfig)
+  }
+
+  //  设置主题
+  setTheme(theme) {
+    this.renderer.clearAllActive()
+    this.opt.theme = theme
+    this.render(null, CONSTANTS.CHANGE_THEME)
+  }
+
+  //  获取当前主题
+  getTheme() {
+    return this.opt.theme
+  }
+
+  //  设置主题配置
+  setThemeConfig(config) {
+    this.opt.themeConfig = config
+    this.render(null, CONSTANTS.CHANGE_THEME)
+  }
+
+  //  获取自定义主题配置
+  getCustomThemeConfig() {
+    return this.opt.themeConfig
+  }
+
+  //  获取某个主题配置值
+  getThemeConfig(prop) {
+    return prop === undefined ? this.themeConfig : this.themeConfig[prop]
+  }
+
+  // 获取配置
+  getConfig(prop) {
+    return prop === undefined ? this.opt : this.opt[prop]
+  }
+
+  // 更新配置
+  updateConfig(opt = {}) {
+    this.opt = this.handleOpt(merge.all([defaultOpt, this.opt, opt]))
+  }
+
+  //  获取当前布局结构
+  getLayout() {
+    return this.opt.layout
+  }
+
+  //  设置布局结构
+  setLayout(layout) {
+    // 检查布局配置
+    if (!layoutValueList.includes(layout)) {
+      layout = CONSTANTS.LAYOUT.LOGICAL_STRUCTURE
+    }
+    this.opt.layout = layout
+    this.renderer.setLayout()
+    this.render()
+  }
+
+  //  执行命令
+  execCommand(...args) {
+    this.command.exec(...args)
+  }
+
+  //  动态设置思维导图数据，纯节点数据
+  setData(data) {
+    this.execCommand('CLEAR_ACTIVE_NODE')
+    this.command.clearHistory()
+    this.command.addHistory()
+    this.renderer.renderTree = data
+    this.reRender()
+  }
+
+  //  动态设置思维导图数据，包括节点数据、布局、主题、视图
+  setFullData(data) {
+    if (data.root) {
+      this.setData(data.root)
+    }
+    if (data.layout) {
+      this.setLayout(data.layout)
+    }
+    if (data.theme) {
+      if (data.theme.template) {
+        this.setTheme(data.theme.template)
+      }
+      if (data.theme.config) {
+        this.setThemeConfig(data.theme.config)
+      }
+    }
+    if (data.view) {
+      this.view.setTransformData(data.view)
+    }
+  }
+
+  //  获取思维导图数据，节点树、主题、布局等
+  getData(withConfig) {
+    let nodeData = this.command.removeDataUid(this.command.getCopyData())
+    let data = {}
+    if (withConfig) {
+      data = {
+        layout: this.getLayout(),
+        root: nodeData,
+        theme: {
+          template: this.getTheme(),
+          config: this.getCustomThemeConfig()
+        },
+        view: this.view.getTransformData()
+      }
+    } else {
+      data = nodeData
+    }
+    return simpleDeepClone(data)
+  }
+
+  //  导出
+  async export(...args) {
+    let result = await this.doExport.export(...args)
+    return result
+  }
+
+  //  转换位置
+  toPos(x, y) {
+    return {
+      x: x - this.elRect.left,
+      y: y - this.elRect.top
+    }
+  }
+
+  //  设置只读模式、编辑模式
+  setMode(mode) {
+    if (![CONSTANTS.MODE.READONLY, CONSTANTS.MODE.EDIT].includes(mode)) {
+      return
+    }
+    this.opt.readonly = mode === CONSTANTS.MODE.READONLY
+    if (this.opt.readonly) {
+      // 取消当前激活的元素
+      this.renderer.clearAllActive()
+    }
+    this.emit('mode_change', mode)
+  }
+
+  // 获取svg数据
+  getSvgData() {
+    const svg = this.svg
+    const draw = this.draw
+    // 保存原始信息
+    const origWidth = svg.width()
+    const origHeight = svg.height()
+    const origTransform = draw.transform()
+    const elRect = this.el.getBoundingClientRect()
+    // 去除放大缩小的变换效果
+    draw.scale(1 / origTransform.scaleX, 1 / origTransform.scaleY)
+    // 获取变换后的位置尺寸信息，其实是getBoundingClientRect方法的包装方法
+    const rect = draw.rbox()
+    // 将svg设置为实际内容的宽高
+    svg.size(rect.width, rect.height)
+    // 把实际内容变换
+    draw.translate(-rect.x + elRect.left, -rect.y + elRect.top)
+    // 克隆一份数据
+    let clone = svg.clone()
+    // 如果实际图形宽高超出了屏幕宽高，且存在水印的话需要重新绘制水印，否则会出现超出部分没有水印的问题
+    if ((rect.width > origWidth || rect.height >  origHeight) && this.watermark && this.watermark.hasWatermark()) {
+      this.width = rect.width
+      this.height = rect.height
+      this.watermark.draw()
+      clone = svg.clone()
+      this.width = origWidth
+      this.height = origHeight
+      this.watermark.draw()
+    }
+    // 恢复原先的大小和变换信息
+    svg.size(origWidth, origHeight)
+    draw.transform(origTransform)
+
+    return {
+      svg: clone, // 思维导图图形的整体svg元素，包括：svg（画布容器）、g（实际的思维导图组）
+      svgHTML: clone.svg(), // svg字符串
+      rect: {
+        ...rect, // 思维导图图形未缩放时的位置尺寸等信息
+        ratio: rect.width / rect.height // 思维导图图形的宽高比
+      },
+      origWidth, // 画布宽度
+      origHeight, // 画布高度
+      scaleX: origTransform.scaleX, // 思维导图图形的水平缩放值
+      scaleY: origTransform.scaleY // 思维导图图形的垂直缩放值
+    }
+  }
+
+  // 添加插件
+  addPlugin(plugin, opt) {
+    let index = MindMap.hasPlugin(plugin)
+    if (index === -1) {
+      MindMap.usePlugin(plugin, opt)
+      this.initPlugin(plugin)
+    }
+  }
+
+  // 移除插件
+  removePlugin(plugin) {
+    let index = MindMap.hasPlugin(plugin)
+    if (index !== -1) {
+      MindMap.pluginList.splice(index, 1)
+      if (this[plugin.instanceName]) {
+        if (this[plugin.instanceName].beforePluginRemove) {
+          this[plugin.instanceName].beforePluginRemove()
        }
-        // 检查主题配置
-        opt.theme = opt.theme && theme[opt.theme] ? opt.theme : 'default'
-        return opt
+        delete this[plugin.instanceName]
+      }
    }
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-06 18:47:29 
-     * @Desc: 渲染，部分渲染
-     */
-    render() {
-        this.batchExecution.push('render', () => {
-            this.initTheme()
-            this.renderer.reRender = false
-            this.renderer.render()
-        })
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-08 22:05:11 
-     * @Desc: 重新渲染 
-     */
-    reRender() {
-        this.batchExecution.push('render', () => {
-            this.draw.clear()
-            this.initTheme()
-            this.renderer.reRender = true
-            this.renderer.render()
-        })
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 21:16:52 
-     * @Desc: 容器尺寸变化，调整尺寸 
-     */
-    resize() {
-        this.elRect = this.el.getBoundingClientRect()
-        this.width = this.elRect.width
-        this.height = this.elRect.height
-        this.svg.size(this.width, this.height)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 13:25:50 
-     * @Desc: 监听事件 
-     */
-    on(event, fn) {
-        this.event.on(event, fn)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 13:51:35 
-     * @Desc: 触发事件 
-     */
-    emit(event, ...args) {
-        this.event.emit(event, ...args)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 13:53:54 
-     * @Desc: 解绑事件 
-     */
-    off(event, fn) {
-        this.event.off(event, fn)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-05 13:32:43 
-     * @Desc: 设置主题
-     */
-    initTheme() {
-        // 合并主题配置
-        this.themeConfig = merge(theme[this.opt.theme], this.opt.themeConfig)
-        // 设置背景样式
-        Style.setBackgroundStyle(this.el, this.themeConfig)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-05 13:52:08 
-     * @Desc: 设置主题 
-     */
-    setTheme(theme) {
-        this.renderer.clearAllActive()
-        this.opt.theme = theme
-        this.reRender()
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-25 23:52:37 
-     * @Desc: 获取当前主题 
-     */
-    getTheme() {
-        return this.opt.theme
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-05 13:50:17 
-     * @Desc: 设置主题配置 
-     */
-    setThemeConfig(config) {
-        this.opt.themeConfig = config
-        this.reRender()
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-01 10:38:34 
-     * @Desc: 获取自定义主题配置 
-     */
-    getCustomThemeConfig() {
-        return this.opt.themeConfig
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-05 14:01:29 
-     * @Desc: 获取某个主题配置值 
-     */
-    getThemeConfig(prop) {
-        return prop === undefined ? this.themeConfig : this.themeConfig[prop]
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-13 16:17:06 
-     * @Desc: 获取当前布局结构 
-     */
-    getLayout() {
-        return this.opt.layout
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-13 16:17:33 
-     * @Desc: 设置布局结构 
-     */
-    setLayout(layout) {
-        // 检查布局配置
-        if (!layoutValueList.includes(layout)) {
-            layout = 'logicalStructure'
-        }
-        this.opt.layout = layout
-        this.renderer.setLayout()
-        this.render()
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-04 13:01:00 
-     * @Desc: 执行命令 
-     */
-    execCommand(...args) {
-        this.command.exec(...args)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-03 22:58:12 
-     * @Desc: 动态设置思维导图数据，纯节点数据
-     */
-    setData(data) {
-        this.execCommand('CLEAR_ACTIVE_NODE')
-        this.command.clearHistory()
-        this.renderer.renderTree = data
-        this.reRender()
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-21 16:39:13 
-     * @Desc: 动态设置思维导图数据，包括节点数据、布局、主题、视图
-     */
-    setFullData(data) {
-        if (data.root) {
-            this.setData(data.root)
-        }
-        if (data.layout) {
-            this.setLayout(data.layout)
-        }
-        if (data.theme) {
-            if (data.theme.template) {
-                this.setTheme(data.theme.template)
-            }
-            if (data.theme.config) {
-                this.setThemeConfig(data.theme.config)
-            }
-        }
-        if (data.view) {
-            this.view.setTransformData(data.view)
-        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-24 14:42:07 
-     * @Desc: 获取思维导图数据，节点树、主题、布局等 
-     */
-    getData(withConfig) {
-        let nodeData = this.command.getCopyData()
-        let data = {}
-        if (withConfig) {
-            data = {
-                layout: this.getLayout(),
-                root: nodeData,
-                theme: {
-                    template: this.getTheme(),
-                    config: this.getCustomThemeConfig()
-                },
-                view: this.view.getTransformData()
-            }
-        } else {
-            data = nodeData
-        }
-        return simpleDeepClone(data)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-01 22:06:38 
-     * @Desc: 导出 
-     */
-    async export(...args) {
-        let result = await this.doExport.export(...args)
-        return result
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 09:20:03 
-     * @Desc: 转换位置 
-     */
-    toPos(x, y) {
-        return {
-            x: x - this.elRect.left,
-            y: y - this.elRect.top
-        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-06-08 14:12:38 
-     * @Desc: 设置只读模式、编辑模式 
-     */
-    setMode(mode) {
-        if (!['readonly', 'edit'].includes(mode)) {
-            return
-        }
-        this.opt.readonly = mode === 'readonly'
-        if (this.opt.readonly) {
-            // 取消当前激活的元素
-            this.renderer.clearAllActive()
-        }
-        this.emit('mode_change', mode)
-    }
+  // 实例化插件
+  initPlugin(plugin) {
+    this[plugin.instanceName] = new plugin({
+      mindMap: this,
+      pluginOpt: plugin.pluginOpt
+    })
+  }
 }

-MindMap.xmind = xmind
+// 插件列表
+MindMap.pluginList = []
+MindMap.usePlugin = (plugin, opt = {}) => {
+  plugin.pluginOpt = opt
+  MindMap.pluginList.push(plugin)
+  return MindMap
+}
+MindMap.hasPlugin = (plugin) => {
+  return MindMap.pluginList.findIndex((item) => {
+    return item === plugin
+  })
+}

-export default MindMap
+// 定义新主题
+MindMap.defineTheme = (name, config = {}) => {
+  if (theme[name]) {
+    return new Error('该主题名称已存在')
+  }
+  theme[name] = merge(defaultTheme, config)
+}
+
+export default MindMap
--- a/simple-mind-map/package-lock.json
+++ b/simple-mind-map/package-lock.json
--- a/simple-mind-map/package.json
+++ b/simple-mind-map/package.json
@@ -1,6 +1,6 @@
 {
  "name": "simple-mind-map",
-  "version": "0.2.15",
+  "version": "0.5.2",
  "description": "一个简单的web在线思维导图",
  "authors": [
    {
@@ -17,16 +17,23 @@
    "type": "git",
    "url": "https://github.com/wanglin2/mind-map"
  },
-  "scripts": {},
+  "scripts": {
+    "lint": "eslint src/",
+    "format": "prettier --write ."
+  },
  "module": "index.js",
-  "main": "./dist/simpleMindMap.umd.min.js",
+  "__main": "./dist/simpleMindMap.umd.min.js",
  "dependencies": {
    "@svgdotjs/svg.js": "^3.0.16",
    "canvg": "^3.0.7",
    "deepmerge": "^1.5.2",
    "eventemitter3": "^4.0.7",
+    "html2canvas": "^1.4.1",
    "jspdf": "^2.5.1",
    "jszip": "^3.10.1",
+    "mdast-util-from-markdown": "^1.3.0",
+    "quill": "^1.3.6",
+    "uuid": "^9.0.0",
    "xml-js": "^1.6.11"
  },
  "keywords": [
@@ -35,5 +42,9 @@
    "mind-map",
    "mindMap",
    "MindMap"
-  ]
+  ],
+  "devDependencies": {
+    "eslint": "^8.25.0",
+    "prettier": "^2.7.1"
+  }
 }
--- a/simple-mind-map/scripts/walkJsFiles.js
+++ b/simple-mind-map/scripts/walkJsFiles.js
@@ -0,0 +1,46 @@
+// 遍历所有js文件
+const path = require('path')
+const fs = require('fs')
+
+const entryPath = path.resolve(__dirname, '../src')
+
+const transform = dir => {
+  let dirs = fs.readdirSync(dir)
+  dirs.forEach(item => {
+    let file = path.join(dir, item)
+    if (fs.statSync(file).isDirectory()) {
+      transform(file)
+    } else if (/\.js$/.test(file)) {
+      transformFile(file)
+    }
+  })
+}
+
+const transformFile = file => {
+  console.log(file);
+  let content = fs.readFileSync(file, 'utf-8')
+  countCodeLines(content)
+  // transformComments(file, content)
+}
+
+// 统计代码行数
+let totalLines = 0
+const countCodeLines = (content) => {
+  totalLines += content.split(/\n/).length
+}
+
+// 转换注释类型
+const transformComments = (file, content) => {
+  console.log('当前转换文件：', file)
+  content = content.replace(/\/\*\*[^/]+\*\//g, str => {
+    let res = /@Desc:([^\n]+)\n/g.exec(str)
+    if (res.length > 0) {
+      return '// ' + res[1]
+    }
+  })
+  fs.writeFileSync(file, content)
+}
+
+transform(entryPath)
+transformFile(path.join(__dirname, '../index.js'))
+console.log(totalLines);
--- a/simple-mind-map/src/AssociativeLine.js
+++ b/simple-mind-map/src/AssociativeLine.js
@@ -0,0 +1,627 @@
+import { walk, bfsWalk, throttle } from './utils/'
+import { v4 as uuid } from 'uuid'
+import {
+  getAssociativeLineTargetIndex,
+  computeCubicBezierPathPoints,
+  joinCubicBezierPath,
+  cubicBezierPath,
+  getNodePoint,
+  computeNodePoints,
+  getNodeLinePath,
+  getDefaultControlPointOffsets
+} from './utils/associativeLineUtils'
+
+// 关联线类
+class AssociativeLine {
+  constructor(opt = {}) {
+    this.mindMap = opt.mindMap
+    this.draw = this.mindMap.draw
+    // 当前所有连接线
+    this.lineList = []
+    // 当前激活的连接线
+    this.activeLine = null
+    // 当前正在创建连接线
+    this.isCreatingLine = false // 是否正在创建连接线中
+    this.creatingStartNode = null // 起始节点
+    this.creatingLine = null // 创建过程中的连接线
+    this.overlapNode = null // 创建过程中的目标节点
+    // 是否有节点正在被拖拽
+    this.isNodeDragging = false
+    // 箭头图标
+    this.markerPath = null
+    this.marker = this.createMarker()
+    // 控制点
+    this.controlLine1 = null
+    this.controlLine2 = null
+    this.controlPoint1 = null
+    this.controlPoint2 = null
+    this.controlPointDiameter = 10
+    this.isControlPointMousedown = false
+    this.mousedownControlPointKey = ''
+    this.controlPointMousemoveState = {
+      pos: null,
+      startPoint: null,
+      endPoint: null,
+      targetIndex: ''
+    }
+    // 节流一下，不然很卡
+    this.checkOverlapNode = throttle(this.checkOverlapNode, 100, this)
+    this.bindEvent()
+  }
+
+  // 监听事件
+  bindEvent() {
+    // 节点树渲染完毕后渲染连接线
+    this.renderAllLines = this.renderAllLines.bind(this)
+    this.mindMap.on('node_tree_render_end', this.renderAllLines)
+    // 状态改变后重新渲染连接线
+    this.mindMap.on('data_change', this.renderAllLines)
+    // 监听画布和节点点击事件，用于清除当前激活的连接线
+    this.mindMap.on('draw_click', () => {
+      if (this.isControlPointMousedown) {
+        return
+      }
+      this.clearActiveLine()
+    })
+    this.mindMap.on('node_click', node => {
+      if (this.isCreatingLine) {
+        this.completeCreateLine(node)
+      } else {
+        this.clearActiveLine()
+      }
+    })
+    // 注册删除快捷键
+    this.mindMap.keyCommand.addShortcut(
+      'Del|Backspace',
+      this.removeLine.bind(this)
+    )
+    // 注册添加连接线的命令
+    this.mindMap.command.add('ADD_ASSOCIATIVE_LINE', this.addLine.bind(this))
+    // 监听鼠标移动事件
+    this.mindMap.on('mousemove', this.onMousemove.bind(this))
+    // 节点拖拽事件
+    this.mindMap.on('node_dragging', this.onNodeDragging.bind(this))
+    this.mindMap.on('node_dragend', this.onNodeDragend.bind(this))
+    // 拖拽控制点
+    window.addEventListener('mousemove', e => {
+      this.onControlPointMousemove(e)
+    })
+    window.addEventListener('mouseup', e => {
+      this.onControlPointMouseup(e)
+    })
+  }
+
+  // 创建箭头
+  createMarker() {
+    return this.draw.marker(20, 20, add => {
+      add.ref(2, 5)
+      add.size(10, 10)
+      add.attr('orient', 'auto-start-reverse')
+      this.markerPath = add.path('M0,0 L2,5 L0,10 L10,5 Z')
+    })
+  }
+
+  // 渲染所有连线
+  renderAllLines() {
+    // 先移除
+    this.removeAllLines()
+    this.removeControls()
+    this.clearActiveLine()
+    let tree = this.mindMap.renderer.root
+    if (!tree) return
+    let idToNode = new Map()
+    let nodeToIds = new Map()
+    walk(
+      tree,
+      null,
+      cur => {
+        if (!cur) return
+        let data = cur.nodeData.data
+        if (
+          data.associativeLineTargets &&
+          data.associativeLineTargets.length > 0
+        ) {
+          nodeToIds.set(cur, data.associativeLineTargets)
+        }
+        if (data.id) {
+          idToNode.set(data.id, cur)
+        }
+      },
+      () => {},
+      true,
+      0
+    )
+    nodeToIds.forEach((ids, node) => {
+      ids.forEach(id => {
+        let toNode = idToNode.get(id)
+        if (!node || !toNode) return
+        let [startPoint, endPoint] = computeNodePoints(node, toNode)
+        this.drawLine(startPoint, endPoint, node, toNode)
+      })
+    })
+  }
+
+  // 绘制连接线
+  drawLine(startPoint, endPoint, node, toNode) {
+    let {
+      associativeLineWidth,
+      associativeLineColor,
+      associativeLineActiveWidth,
+      associativeLineActiveColor
+    } = this.mindMap.themeConfig
+    // 箭头
+    this.markerPath
+      .stroke({ color: associativeLineColor })
+      .fill({ color: associativeLineColor })
+    // 路径
+    let { path: pathStr, controlPoints } = getNodeLinePath(
+      startPoint,
+      endPoint,
+      node,
+      toNode
+    )
+    // 虚线
+    let path = this.draw.path()
+    path
+      .stroke({
+        width: associativeLineWidth,
+        color: associativeLineColor,
+        dasharray: [6, 4]
+      })
+      .fill({ color: 'none' })
+    path.plot(pathStr)
+    path.marker('end', this.marker)
+    // 不可见的点击线
+    let clickPath = this.draw.path()
+    clickPath
+      .stroke({ width: associativeLineActiveWidth, color: 'transparent' })
+      .fill({ color: 'none' })
+    clickPath.plot(pathStr)
+    // 点击事件
+    clickPath.click(e => {
+      e.stopPropagation()
+      // 如果当前存在激活节点，那么取消激活节点
+      if (this.mindMap.renderer.activeNodeList.length > 0) {
+        this.clearActiveNodes()
+      } else {
+        // 否则清除当前的关联线的激活状态，如果有的话
+        this.clearActiveLine()
+        // 保存当前激活的关联线信息
+        this.activeLine = [path, clickPath, node, toNode]
+        // 让不可见的点击线显示
+        clickPath.stroke({ color: associativeLineActiveColor })
+        // 渲染控制点和连线
+        this.renderControls(
+          startPoint,
+          endPoint,
+          controlPoints[0],
+          controlPoints[1]
+        )
+        this.mindMap.emit(
+          'associative_line_click',
+          path,
+          clickPath,
+          node,
+          toNode
+        )
+      }
+    })
+    this.lineList.push([path, clickPath, node, toNode])
+  }
+
+  // 移除所有连接线
+  removeAllLines() {
+    this.lineList.forEach(line => {
+      line[0].remove()
+      line[1].remove()
+    })
+    this.lineList = []
+  }
+
+  // 从当前激活节点开始创建连接线
+  createLineFromActiveNode() {
+    if (this.mindMap.renderer.activeNodeList.length <= 0) return
+    let node = this.mindMap.renderer.activeNodeList[0]
+    this.createLine(node)
+  }
+
+  // 创建连接线
+  createLine(fromNode) {
+    let { associativeLineWidth, associativeLineColor } =
+      this.mindMap.themeConfig
+    if (this.isCreatingLine || !fromNode) return
+    this.isCreatingLine = true
+    this.creatingStartNode = fromNode
+    this.creatingLine = this.draw.path()
+    this.creatingLine
+      .stroke({
+        width: associativeLineWidth,
+        color: associativeLineColor,
+        dasharray: [6, 4]
+      })
+      .fill({ color: 'none' })
+    this.creatingLine.marker('end', this.marker)
+  }
+
+  // 鼠标移动事件
+  onMousemove(e) {
+    if (!this.isCreatingLine) return
+    this.updateCreatingLine(e)
+  }
+
+  // 更新创建过程中的连接线
+  updateCreatingLine(e) {
+    let { x, y } = this.getTransformedEventPos(e)
+    let startPoint = getNodePoint(this.creatingStartNode)
+    let pathStr = cubicBezierPath(startPoint.x, startPoint.y, x, y)
+    this.creatingLine.plot(pathStr)
+    this.checkOverlapNode(x, y)
+  }
+
+  // 获取转换后的鼠标事件对象的坐标
+  getTransformedEventPos(e) {
+    let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+    let { scaleX, scaleY, translateX, translateY } =
+      this.mindMap.draw.transform()
+    return {
+      x: (x - translateX) / scaleX,
+      y: (y - translateY) / scaleY
+    }
+  }
+
+  // 检测当前移动到的目标节点
+  checkOverlapNode(x, y) {
+    this.overlapNode = null
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node.nodeData.data.isActive) {
+        this.mindMap.renderer.setNodeActive(node, false)
+      }
+      if (node === this.creatingStartNode || this.overlapNode) {
+        return
+      }
+      let { left, top, width, height } = node
+      let right = left + width
+      let bottom = top + height
+      if (x >= left && x <= right && y >= top && y <= bottom) {
+        this.overlapNode = node
+      }
+    })
+    if (this.overlapNode && !this.overlapNode.nodeData.data.isActive) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, true)
+    }
+  }
+
+  // 完成创建连接线
+  completeCreateLine(node) {
+    if (this.creatingStartNode === node) return
+    this.addLine(this.creatingStartNode, node)
+    if (this.overlapNode && this.overlapNode.nodeData.data.isActive) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, false)
+    }
+    this.isCreatingLine = false
+    this.creatingStartNode = null
+    this.creatingLine.remove()
+    this.creatingLine = null
+    this.overlapNode = null
+  }
+
+  // 添加连接线
+  addLine(fromNode, toNode) {
+    if (!fromNode || !toNode) return
+    // 目标节点如果没有id，则生成一个id
+    let id = toNode.nodeData.data.id
+    if (!id) {
+      id = uuid()
+      this.mindMap.execCommand('SET_NODE_DATA', toNode, {
+        id
+      })
+    }
+    // 将目标节点id保存起来
+    let list = fromNode.nodeData.data.associativeLineTargets || []
+    list.push(id)
+    // 保存控制点
+    let [startPoint, endPoint] = computeNodePoints(fromNode, toNode)
+    let controlPoints = computeCubicBezierPathPoints(
+      startPoint.x,
+      startPoint.y,
+      endPoint.x,
+      endPoint.y
+    )
+    let offsetList =
+      fromNode.nodeData.data.associativeLineTargetControlOffsets || []
+    // 保存的实际是控制点和端点的差值，否则当节点位置改变了，控制点还是原来的位置，连线就不对了
+    offsetList[list.length - 1] = [
+      {
+        x: controlPoints[0].x - startPoint.x,
+        y: controlPoints[0].y - startPoint.y
+      },
+      {
+        x: controlPoints[1].x - endPoint.x,
+        y: controlPoints[1].y - endPoint.y
+      }
+    ]
+    this.mindMap.execCommand('SET_NODE_DATA', fromNode, {
+      associativeLineTargets: list,
+      associativeLineTargetControlOffsets: offsetList
+    })
+  }
+
+  // 删除连接线
+  removeLine() {
+    if (!this.activeLine) return
+    let [, , node, toNode] = this.activeLine
+    this.removeControls()
+    let { associativeLineTargets, associativeLineTargetControlOffsets } =
+      node.nodeData.data
+    let targetIndex = getAssociativeLineTargetIndex(node, toNode)
+    this.mindMap.execCommand('SET_NODE_DATA', node, {
+      associativeLineTargets: associativeLineTargets.filter((_, index) => {
+        return index !== targetIndex
+      }),
+      associativeLineTargetControlOffsets: associativeLineTargetControlOffsets
+        ? associativeLineTargetControlOffsets.filter((_, index) => {
+            return index !== targetIndex
+          })
+        : []
+    })
+  }
+
+  // 清除当前激活的节点
+  clearActiveNodes() {
+    if (this.mindMap.renderer.activeNodeList.length > 0) {
+      this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
+    }
+  }
+
+  // 清除激活的线
+  clearActiveLine() {
+    if (this.activeLine) {
+      this.activeLine[1].stroke({
+        color: 'transparent'
+      })
+      this.activeLine = null
+      this.removeControls()
+    }
+  }
+
+  // 处理节点正在拖拽事件
+  onNodeDragging() {
+    if (this.isNodeDragging) return
+    this.isNodeDragging = true
+    this.lineList.forEach(line => {
+      line[0].hide()
+      line[1].hide()
+    })
+    this.hideControls()
+  }
+
+  // 处理节点拖拽完成事件
+  onNodeDragend() {
+    if (!this.isNodeDragging) return
+    this.lineList.forEach(line => {
+      line[0].show()
+      line[1].show()
+    })
+    this.showControls()
+    this.isNodeDragging = false
+  }
+
+  // 创建控制点、连线节点
+  createControlNodes() {
+    let { associativeLineActiveColor } = this.mindMap.themeConfig
+    // 连线
+    this.controlLine1 = this.draw
+      .line()
+      .stroke({ color: associativeLineActiveColor, width: 2 })
+    this.controlLine2 = this.draw
+      .line()
+      .stroke({ color: associativeLineActiveColor, width: 2 })
+    // 控制点
+    this.controlPoint1 = this.createOneControlNode('controlPoint1')
+    this.controlPoint2 = this.createOneControlNode('controlPoint2')
+  }
+
+  // 创建控制点
+  createOneControlNode(pointKey) {
+    let { associativeLineActiveColor } = this.mindMap.themeConfig
+    return this.draw
+      .circle(this.controlPointDiameter)
+      .stroke({ color: associativeLineActiveColor })
+      .fill({ color: '#fff' })
+      .click(e => {
+        e.stopPropagation()
+      })
+      .mousedown(e => {
+        this.onControlPointMousedown(e, pointKey)
+      })
+  }
+
+  // 控制点的鼠标按下事件
+  onControlPointMousedown(e, pointKey) {
+    e.stopPropagation()
+    this.isControlPointMousedown = true
+    this.mousedownControlPointKey = pointKey
+  }
+
+  // 控制点的鼠标移动事件
+  onControlPointMousemove(e) {
+    if (
+      !this.isControlPointMousedown ||
+      !this.mousedownControlPointKey ||
+      !this[this.mousedownControlPointKey]
+    )
+      return
+    e.stopPropagation()
+    e.preventDefault()
+    let radius = this.controlPointDiameter / 2
+    // 转换鼠标当前的位置
+    let { x, y } = this.getTransformedEventPos(e)
+    this.controlPointMousemoveState.pos = {
+      x,
+      y
+    }
+    // 更新当前拖拽的控制点的位置
+    this[this.mousedownControlPointKey].x(x - radius).y(y - radius)
+    let [path, clickPath, node, toNode] = this.activeLine
+    let [startPoint, endPoint] = computeNodePoints(node, toNode)
+    this.controlPointMousemoveState.startPoint = startPoint
+    this.controlPointMousemoveState.endPoint = endPoint
+    let targetIndex = getAssociativeLineTargetIndex(node, toNode)
+    this.controlPointMousemoveState.targetIndex = targetIndex
+    let offsets = []
+    let associativeLineTargetControlOffsets = node.nodeData.data.associativeLineTargetControlOffsets
+    if (!associativeLineTargetControlOffsets) {
+      // 兼容0.4.5版本，没有associativeLineTargetControlOffsets的情况
+      offsets = getDefaultControlPointOffsets(startPoint, endPoint)
+    } else {
+      offsets = associativeLineTargetControlOffsets[targetIndex]
+    }
+    let point1 = null
+    let point2 = null
+    // 拖拽的是控制点1
+    if (this.mousedownControlPointKey === 'controlPoint1') {
+      point1 = {
+        x,
+        y
+      }
+      point2 = {
+        x: endPoint.x + offsets[1].x,
+        y: endPoint.y + offsets[1].y
+      }
+      // 更新控制点1的连线
+      this.controlLine1.plot(startPoint.x, startPoint.y, point1.x, point1.y)
+    } else {
+      // 拖拽的是控制点2
+      point1 = {
+        x: startPoint.x + offsets[0].x,
+        y: startPoint.y + offsets[0].y
+      }
+      point2 = {
+        x,
+        y
+      }
+      // 更新控制点2的连线
+      this.controlLine2.plot(endPoint.x, endPoint.y, point2.x, point2.y)
+    }
+    // 更新关联线
+    let pathStr = joinCubicBezierPath(startPoint, endPoint, point1, point2)
+    path.plot(pathStr)
+    clickPath.plot(pathStr)
+  }
+
+  // 控制点的鼠标移动事件
+  onControlPointMouseup(e) {
+    if (!this.isControlPointMousedown) return
+    e.stopPropagation()
+    e.preventDefault()
+    let { pos, startPoint, endPoint, targetIndex } =
+      this.controlPointMousemoveState
+    let [, , node] = this.activeLine
+    let offsetList = []
+    let associativeLineTargetControlOffsets = node.nodeData.data.associativeLineTargetControlOffsets
+    if (!associativeLineTargetControlOffsets) {
+      // 兼容0.4.5版本，没有associativeLineTargetControlOffsets的情况
+      offsetList[targetIndex] = getDefaultControlPointOffsets(startPoint, endPoint)
+    } else {  
+      offsetList = associativeLineTargetControlOffsets
+    }
+    let offset1 = null
+    let offset2 = null
+    if (this.mousedownControlPointKey === 'controlPoint1') {
+      // 更新控制点1数据
+      offset1 = {
+        x: pos.x - startPoint.x,
+        y: pos.y - startPoint.y
+      }
+      offset2 = offsetList[targetIndex][1]
+    } else {
+      // 更新控制点2数据
+      offset1 = offsetList[targetIndex][0]
+      offset2 = {
+        x: pos.x - endPoint.x,
+        y: pos.y - endPoint.y
+      }
+    }
+    offsetList[targetIndex] = [offset1, offset2]
+    this.mindMap.execCommand('SET_NODE_DATA', node, {
+      associativeLineTargetControlOffsets: offsetList
+    })
+    // 这里要加个setTimeout0是因为draw_click事件比mouseup事件触发的晚，所以重置isControlPointMousedown需要等draw_click事件触发完以后
+    setTimeout(() => {
+      this.resetControlPoint()
+    }, 0)
+  }
+
+  // 复位控制点移动
+  resetControlPoint() {
+    this.isControlPointMousedown = false
+    this.mousedownControlPointKey = ''
+    this.controlPointMousemoveState = {
+      pos: null,
+      startPoint: null,
+      endPoint: null,
+      targetIndex: ''
+    }
+  }
+
+  // 渲染控制点
+  renderControls(startPoint, endPoint, point1, point2) {
+    if (!this.controlLine1) {
+      this.createControlNodes()
+    }
+    let radius = this.controlPointDiameter / 2
+    // 控制点和起终点的连线
+    this.controlLine1.plot(startPoint.x, startPoint.y, point1.x, point1.y)
+    this.controlLine2.plot(endPoint.x, endPoint.y, point2.x, point2.y)
+    // 控制点
+    this.controlPoint1.x(point1.x - radius).y(point1.y - radius)
+    this.controlPoint2.x(point2.x - radius).y(point2.y - radius)
+  }
+
+  // 删除控制点
+  removeControls() {
+    if (!this.controlLine1) return
+    ;[
+      this.controlLine1,
+      this.controlLine2,
+      this.controlPoint1,
+      this.controlPoint2
+    ].forEach(item => {
+      item.remove()
+    })
+    this.controlLine1 = null
+    this.controlLine2 = null
+    this.controlPoint1 = null
+    this.controlPoint2 = null
+  }
+
+  // 隐藏控制点
+  hideControls() {
+    if (!this.controlLine1) return
+    ;[
+      this.controlLine1,
+      this.controlLine2,
+      this.controlPoint1,
+      this.controlPoint2
+    ].forEach(item => {
+      item.hide()
+    })
+  }
+
+  // 显示控制点
+  showControls() {
+    if (!this.controlLine1) return
+    ;[
+      this.controlLine1,
+      this.controlLine2,
+      this.controlPoint1,
+      this.controlPoint2
+    ].forEach(item => {
+      item.show()
+    })
+  }
+}
+
+AssociativeLine.instanceName = 'associativeLine'
+
+export default AssociativeLine
--- a/simple-mind-map/src/BatchExecution.js
+++ b/simple-mind-map/src/BatchExecution.js
@@ -1,85 +1,36 @@
-/** 
- * @Author: 王林 
- * @Date: 2021-06-27 13:16:23 
- * @Desc: 在下一个事件循环里执行任务 
- */
-const nextTick = function (fn, ctx) {
-    let pending = false
-    let timerFunc = null
-    let handle = () => {
-        pending = false
-        ctx ? fn.call(ctx) : fn()
-    }
-    // 支持MutationObserver接口的话使用MutationObserver
-    if (typeof MutationObserver !== 'undefined') {
-        let counter = 1
-        let observer = new MutationObserver(handle)
-        let textNode = document.createTextNode(counter)
-        observer.observe(textNode, {
-            characterData: true// 设为 true 表示监视指定目标节点或子节点树中节点所包含的字符数据的变化
-        })
-        timerFunc = function () {
-            counter = (counter + 1) % 2// counter会在0和1两者循环变化
-            textNode.data = counter// 节点变化会触发回调handle，
-        }
-    } else {// 否则使用定时器
-        timerFunc = setTimeout
-    }
-    return function (cb, ctx) {
-        if (pending) return
-        pending = true
-        timerFunc(handle, 0)
-    }
-}
+import { nextTick } from './utils'

-
-/** 
- * @Author: 王林 
- * @Date: 2021-06-26 22:40:52 
- * @Desc: 批量执行 
- */
+//  批量执行
 class BatchExecution {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-26 22:41:41 
-     * @Desc: 构造函数 
-     */
-    constructor() {
-        this.has = {}
-        this.queue = []
-        this.nextTick = nextTick(this.flush, this)
-    }
+  //  构造函数
+  constructor() {
+    this.has = {}
+    this.queue = []
+    this.nextTick = nextTick(this.flush, this)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-27 12:54:04 
-     * @Desc: 添加任务 
-     */
-    push(name, fn) {
-        if (this.has[name]) {
-            return;
-        }
-        this.has[name] = true
-        this.queue.push({
-            name,
-            fn
-        })
-        this.nextTick()
+  //  添加任务
+  push(name, fn) {
+    if (this.has[name]) {
+      return
    }
+    this.has[name] = true
+    this.queue.push({
+      name,
+      fn
+    })
+    this.nextTick()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-27 13:09:24 
-     * @Desc:  执行队列
-     */
-    flush() {
-        let fns = this.queue.slice(0)
-        this.queue = []
-        fns.forEach(({ name, fn }) => {
-            this.has[name] = false
-            fn()
-        })
-    }
+  //   执行队列
+  flush() {
+    let fns = this.queue.slice(0)
+    this.queue = []
+    fns.forEach(({ name, fn }) => {
+      this.has[name] = false
+      fn()
+    })
+  }
 }

-export default BatchExecution
+export default BatchExecution
--- a/simple-mind-map/src/Command.js
+++ b/simple-mind-map/src/Command.js
@@ -1,152 +1,150 @@
-import { copyRenderTree, simpleDeepClone } from './utils';
+import { copyRenderTree, simpleDeepClone, nextTick } from './utils'

-/** 
- * @Author: 王林 
- * @Date: 2021-05-04 13:10:06 
- * @Desc: 命令类 
- */
+//  命令类
 class Command {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-04 13:10:24 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        this.opt = opt
-        this.mindMap = opt.mindMap
-        this.commands = {}
-        this.history = []
-        this.activeHistoryIndex = 0
-        // 注册快捷键
-        this.registerShortcutKeys()
-    }
+  //  构造函数
+  constructor(opt = {}) {
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.commands = {}
+    this.history = []
+    this.activeHistoryIndex = 0
+    // 注册快捷键
+    this.registerShortcutKeys()
+    this.addHistory = nextTick(this.addHistory, this)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-03 23:06:55 
-     * @Desc: 清空历史数据 
-     */
-    clearHistory() {
-        this.history = []
-        this.activeHistoryIndex = 0
-        this.mindMap.emit('back_forward', 0, 0)
-    }
+  //  清空历史数据
+  clearHistory() {
+    this.history = []
+    this.activeHistoryIndex = 0
+    this.mindMap.emit('back_forward', 0, 0)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-02 23:23:19 
-     * @Desc: 注册快捷键 
-     */
-    registerShortcutKeys() {
-        this.mindMap.keyCommand.addShortcut('Control+z', () => {
-            this.mindMap.execCommand('BACK')
-        })
-        this.mindMap.keyCommand.addShortcut('Control+y', () => {
-            this.mindMap.execCommand('FORWARD')
+  //  注册快捷键
+  registerShortcutKeys() {
+    this.mindMap.keyCommand.addShortcut('Control+z', () => {
+      this.mindMap.execCommand('BACK')
+    })
+    this.mindMap.keyCommand.addShortcut('Control+y', () => {
+      this.mindMap.execCommand('FORWARD')
+    })
+  }
+
+  //  执行命令
+  exec(name, ...args) {
+    if (this.commands[name]) {
+      this.commands[name].forEach(fn => {
+        fn(...args)
+      })
+      if (['BACK', 'FORWARD', 'SET_NODE_ACTIVE', 'CLEAR_ACTIVE_NODE'].includes(name)) {
+        return
+      }
+      this.addHistory()
+    }
+  }
+
+  //  添加命令
+  add(name, fn) {
+    if (this.commands[name]) {
+      this.commands[name].push(fn)
+    } else {
+      this.commands[name] = [fn]
+    }
+  }
+
+  //  移除命令
+  remove(name, fn) {
+    if (!this.commands[name]) {
+      return
+    }
+    if (!fn) {
+      this.commands[name] = []
+      delete this.commands[name]
+    } else {
+      let index = this.commands[name].find(item => {
+        return item === fn
+      })
+      if (index !== -1) {
+        this.commands[name].splice(index, 1)
+      }
+    }
+  }
+
+  //  添加回退数据
+  addHistory() {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    let data = this.getCopyData()
+    // 此次数据和上次一样则不重复添加
+    if (this.history.length > 0 && JSON.stringify(this.history[this.history.length - 1]) === JSON.stringify(data)) {
+      return
+    }
+    // 删除当前历史指针后面的数据
+    this.history = this.history.slice(0, this.activeHistoryIndex + 1)
+    this.history.push(simpleDeepClone(data))
+    this.activeHistoryIndex = this.history.length - 1
+    this.mindMap.emit('data_change', this.removeDataUid(data))
+    this.mindMap.emit(
+      'back_forward',
+      this.activeHistoryIndex,
+      this.history.length
+    )
+  }
+
+  //  回退
+  back(step = 1) {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    if (this.activeHistoryIndex - step >= 0) {
+      this.activeHistoryIndex -= step
+      this.mindMap.emit(
+        'back_forward',
+        this.activeHistoryIndex,
+        this.history.length
+      )
+      let data = simpleDeepClone(this.history[this.activeHistoryIndex])
+      this.mindMap.emit('data_change', this.removeDataUid(data))
+      return data
+    }
+  }
+
+  //  前进
+  forward(step = 1) {
+    if (this.mindMap.opt.readonly) {
+      return
+    }
+    let len = this.history.length
+    if (this.activeHistoryIndex + step <= len - 1) {
+      this.activeHistoryIndex += step
+      this.mindMap.emit('back_forward', this.activeHistoryIndex, this.history.length)
+      let data = simpleDeepClone(this.history[this.activeHistoryIndex])
+      this.mindMap.emit('data_change', this.removeDataUid(data))
+      return data
+    }
+  }
+
+  //  获取渲染树数据副本
+  getCopyData() {
+    return copyRenderTree({}, this.mindMap.renderer.renderTree, true)
+  }
+
+  // 移除节点数据中的uid
+  removeDataUid(data) {
+    data = simpleDeepClone(data)
+    let walk = (root) => {
+      delete root.data.uid
+      if (root.children && root.children.length > 0) {
+        root.children.forEach((item) => {
+          walk(item)
        })
+      }
    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-04 13:12:30 
-     * @Desc: 执行命令 
-     */
-    exec(name, ...args) {
-        if (this.commands[name]) {
-            this.commands[name].forEach((fn) => {
-                fn(...args)
-            })
-            if (name === 'BACK' || name === 'FORWARD') {
-                return;
-            }
-            this.addHistory()
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-04 13:13:01 
-     * @Desc: 添加命令 
-     */
-    add(name, fn) {
-        if (this.commands[name]) {
-            this.commands[name].push(fn)
-        } else {
-            this.commands[name] = [fn]
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-15 23:02:41 
-     * @Desc: 移除命令 
-     */
-    remove(name, fn) {
-        if (!this.commands[name]) {
-            return
-        }
-        if (!fn) {
-            this.commands[name] = []
-            delete this.commands[name]
-        } else {
-            let index = this.commands[name].find((item) => {
-                return item === fn;
-            })
-            if (index !== -1) {
-                this.commands[name].splice(index, 1)
-            }
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-04 14:35:43 
-     * @Desc: 添加回退数据 
-     */
-    addHistory() {
-        let data = this.getCopyData()
-        this.history.push(simpleDeepClone(data))
-        this.activeHistoryIndex = this.history.length - 1
-        this.mindMap.emit('data_change', data)
-        this.mindMap.emit('back_forward', this.activeHistoryIndex, this.history.length)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 22:34:53 
-     * @Desc: 回退 
-     */
-    back(step = 1) {
-        if (this.activeHistoryIndex - step >= 0) {
-            this.activeHistoryIndex -= step
-            this.mindMap.emit('back_forward', this.activeHistoryIndex, this.history.length)
-            return simpleDeepClone(this.history[this.activeHistoryIndex]);
-        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-12 10:45:31 
-     * @Desc: 前进 
-     */
-    forward(step = 1) {
-        let len = this.history.length
-        if (this.activeHistoryIndex + step <= len - 1) {
-            this.activeHistoryIndex += step
-            this.mindMap.emit('back_forward', this.activeHistoryIndex,)
-            return simpleDeepClone(this.history[this.activeHistoryIndex]);
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-05-04 15:02:58 
-     * @Desc: 获取渲染树数据副本 
-     */
-    getCopyData() {
-        return copyRenderTree({}, this.mindMap.renderer.renderTree)
-    }
+    walk(data)
+    return data
+  }
 }

-export default Command
+export default Command
--- a/simple-mind-map/src/Drag.js
+++ b/simple-mind-map/src/Drag.js
@@ -1,317 +1,320 @@
-import {
-    bfsWalk,
-    throttle
-} from './utils'
+import { bfsWalk, throttle } from './utils'
 import Base from './layouts/Base'

-/** 
- * javascript comment 
- * @Author: 王林25 
- * @Date: 2021-11-23 17:38:55 
- * @Desc: 节点拖动类 
- */
+//  节点拖动类
+
 class Drag extends Base {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-10 22:35:16 
-     * @Desc: 构造函数 
-     */
-    constructor({
-        mindMap
-    }) {
-        super(mindMap.renderer)
-        this.mindMap = mindMap
-        this.reset()
-        this.bindEvent()
-    }
+  //  构造函数
+  constructor({ mindMap }) {
+    super(mindMap.renderer)
+    this.mindMap = mindMap
+    this.reset()
+    this.bindEvent()
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-23 19:33:56 
-     * @Desc: 复位 
-     */
-    reset() {
-        // 当前拖拽节点
-        this.node = null
-        // 当前重叠节点
-        this.overlapNode = null
-        // 当前上一个同级节点
-        this.prevNode = null
-        // 当前下一个同级节点
-        this.nextNode = null
-        // 画布的变换数据
-        this.drawTransform = null
-        // 克隆节点
-        this.clone = null
-        // 连接线
-        this.line = null
-        // 同级位置占位符
-        this.placeholder = null
-        // 鼠标按下位置和节点左上角的偏移量
-        this.offsetX = 0
-        this.offsetY = 0
-        // 克隆节点左上角的坐标
-        this.cloneNodeLeft = 0
-        this.cloneNodeTop = 0
-        // 当前鼠标是否按下
-        this.isMousedown = false
-        // 拖拽的鼠标位置变量
-        this.mouseDownX = 0
-        this.mouseDownY = 0
-        this.mouseMoveX = 0
-        this.mouseMoveY = 0
-    }
+  //  复位
+  reset() {
+    // 当前拖拽节点
+    this.node = null
+    // 当前重叠节点
+    this.overlapNode = null
+    // 当前上一个同级节点
+    this.prevNode = null
+    // 当前下一个同级节点
+    this.nextNode = null
+    // 画布的变换数据
+    this.drawTransform = null
+    // 克隆节点
+    this.clone = null
+    // 连接线
+    this.line = null
+    // 同级位置占位符
+    this.placeholder = null
+    // 鼠标按下位置和节点左上角的偏移量
+    this.offsetX = 0
+    this.offsetY = 0
+    // 克隆节点左上角的坐标
+    this.cloneNodeLeft = 0
+    this.cloneNodeTop = 0
+    // 当前鼠标是否按下
+    this.isMousedown = false
+    // 拖拽的鼠标位置变量
+    this.mouseDownX = 0
+    this.mouseDownY = 0
+    this.mouseMoveX = 0
+    this.mouseMoveY = 0
+    // 鼠标移动的距离距鼠标按下的位置距离多少以上才认为是拖动事件
+    this.checkDragOffset = 10
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-10 22:36:36 
-     * @Desc: 绑定事件 
-     */
-    bindEvent() {
-        this.checkOverlapNode = throttle(this.checkOverlapNode, 300, this)
-        this.mindMap.on('node_mousedown', (node, e) => {
-            if (this.mindMap.opt.readonly || node.isGeneralization) {
-                return
-            }
-            if (e.which !== 1 || node.isRoot) {
-                return
-            }
-            e.preventDefault()
-            // 计算鼠标按下的位置距离节点左上角的距离
-            this.drawTransform = this.mindMap.draw.transform()
-            let {
-                scaleX,
-                scaleY,
-                translateX,
-                translateY
-            } = this.drawTransform
-            this.offsetX = e.clientX - (node.left * scaleX + translateX)
-            this.offsetY = e.clientY - (node.top * scaleY + translateY)
-            // 
-            this.node = node
-            this.isMousedown = true
-            let {
-                x,
-                y
-            } = this.mindMap.toPos(e.clientX, e.clientY)
-            this.mouseDownX = x
-            this.mouseDownY = y
-        })
-        this.mindMap.on('mousemove', (e) => {
-            if (this.mindMap.opt.readonly) {
-                return
-            }
-            if (!this.isMousedown) {
-                return
-            }
-            e.preventDefault()
-            let {
-                x,
-                y
-            } = this.mindMap.toPos(e.clientX, e.clientY)
-            this.mouseMoveX = x
-            this.mouseMoveY = y
-            if ((Math.abs(x - this.mouseDownX) <= 10 && Math.abs(y - this.mouseDownY) <= 10) && !this.node.isDrag) {
-                return
-            }
-            this.mindMap.renderer.clearAllActive()
-            this.onMove(x, y)
-        })
-        this.onMouseup = this.onMouseup.bind(this)
-        this.mindMap.on('node_mouseup', this.onMouseup)
-        this.mindMap.on('mouseup', this.onMouseup)
-    }
+  //  绑定事件
+  bindEvent() {
+    this.checkOverlapNode = throttle(this.checkOverlapNode, 300, this)
+    this.mindMap.on('node_mousedown', (node, e) => {
+      if (this.mindMap.opt.readonly || node.isGeneralization) {
+        return
+      }
+      if (e.which !== 1 || node.isRoot) {
+        return
+      }
+      e.preventDefault()
+      // 计算鼠标按下的位置距离节点左上角的距离
+      this.drawTransform = this.mindMap.draw.transform()
+      let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.offsetX = x - (node.left * scaleX + translateX)
+      this.offsetY = y - (node.top * scaleY + translateY)
+      this.node = node
+      this.isMousedown = true
+      this.mouseDownX = x
+      this.mouseDownY = y
+    })
+    this.mindMap.on('mousemove', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!this.isMousedown) {
+        return
+      }
+      this.mindMap.emit('node_dragging', this.node)
+      e.preventDefault()
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.mouseMoveX = x
+      this.mouseMoveY = y
+      if (
+        Math.abs(x - this.mouseDownX) <= this.checkDragOffset &&
+        Math.abs(y - this.mouseDownY) <= this.checkDragOffset &&
+        !this.node.isDrag
+      ) {
+        return
+      }
+      this.mindMap.renderer.clearAllActive()
+      this.onMove(x, y)
+    })
+    this.onMouseup = this.onMouseup.bind(this)
+    this.mindMap.on('node_mouseup', this.onMouseup)
+    this.mindMap.on('mouseup', this.onMouseup)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-23 19:38:02 
-     * @Desc: 鼠标松开事件 
-     */
-    onMouseup(e) {
-        if (!this.isMousedown) {
-            return;
-        }
-        this.isMousedown = false
-        let _nodeIsDrag = this.node.isDrag
-        this.node.isDrag = false
-        this.node.show()
-        this.removeCloneNode()
-        // 存在重叠子节点，则移动作为其子节点
-        if (this.overlapNode) {
-            this.mindMap.renderer.setNodeActive(this.overlapNode, false)
-            this.mindMap.execCommand('MOVE_NODE_TO', this.node, this.overlapNode)
-        } else if (this.prevNode) { // 存在前一个相邻节点，作为其下一个兄弟节点
-            this.mindMap.renderer.setNodeActive(this.prevNode, false)
-            this.mindMap.execCommand('INSERT_AFTER', this.node, this.prevNode)
-        } else if (this.nextNode) { // 存在下一个相邻节点，作为其前一个兄弟节点
-            this.mindMap.renderer.setNodeActive(this.nextNode, false)
-            this.mindMap.execCommand('INSERT_BEFORE', this.node, this.nextNode)
-        } else if (_nodeIsDrag) {
-            // 自定义位置
-            let {
-                x,
-                y
-            } = this.mindMap.toPos(e.clientX - this.offsetX, e.clientY - this.offsetY)
-            let {
-                scaleX,
-                scaleY,
-                translateX,
-                translateY
-            } = this.drawTransform
-            x = (x - translateX) / scaleX
-            y = (y - translateY) / scaleY
-            this.node.left = x
-            this.node.top = y
-            this.node.customLeft = x
-            this.node.customTop = y
-            this.mindMap.execCommand('SET_NODE_CUSTOM_POSITION', this.node, x, y)
-            this.mindMap.render()
-        }
-        this.reset()
+  //  鼠标松开事件
+  onMouseup(e) {
+    if (!this.isMousedown) {
+      return
    }
+    this.isMousedown = false
+    let _nodeIsDrag = this.node.isDrag
+    this.node.isDrag = false
+    this.node.show()
+    this.removeCloneNode()
+    // 存在重叠子节点，则移动作为其子节点
+    if (this.overlapNode) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, false)
+      this.mindMap.execCommand('MOVE_NODE_TO', this.node, this.overlapNode)
+    } else if (this.prevNode) {
+      // 存在前一个相邻节点，作为其下一个兄弟节点
+      this.mindMap.renderer.setNodeActive(this.prevNode, false)
+      this.mindMap.execCommand('INSERT_AFTER', this.node, this.prevNode)
+    } else if (this.nextNode) {
+      // 存在下一个相邻节点，作为其前一个兄弟节点
+      this.mindMap.renderer.setNodeActive(this.nextNode, false)
+      this.mindMap.execCommand('INSERT_BEFORE', this.node, this.nextNode)
+    } else if (_nodeIsDrag && this.mindMap.opt.enableFreeDrag) {
+      // 自定义位置
+      let { x, y } = this.mindMap.toPos(
+        e.clientX - this.offsetX,
+        e.clientY - this.offsetY
+      )
+      let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+      x = (x - translateX) / scaleX
+      y = (y - translateY) / scaleY
+      this.node.left = x
+      this.node.top = y
+      this.node.customLeft = x
+      this.node.customTop = y
+      this.mindMap.execCommand('SET_NODE_CUSTOM_POSITION', this.node, x, y)
+      this.mindMap.render()
+    }
+    this.reset()
+    this.mindMap.emit('node_dragend')
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-23 19:34:53 
-     * @Desc: 创建克隆节点 
-     */
-    createCloneNode() {
-        if (!this.clone) {
-            // 节点
-            this.clone = this.node.group.clone()
-            this.clone.opacity(0.5)
-            this.clone.css('z-index', 99999)
-            this.node.isDrag = true
-            this.node.hide()
-            // 连接线
-            this.line = this.draw.path()
-            this.line.opacity(0.5)
-            this.node.styleLine(this.line, this.node)
-            // 同级位置占位符
-            this.placeholder = this.draw.rect().fill({
-                color: this.node.style.merge('lineColor', true)
-            })
-            this.mindMap.draw.add(this.clone)
-        }
+  //  创建克隆节点
+  createCloneNode() {
+    if (!this.clone) {
+      // 节点
+      this.clone = this.node.group.clone()
+      this.clone.opacity(0.5)
+      this.clone.css('z-index', 99999)
+      this.node.isDrag = true
+      this.node.hide()
+      // 连接线
+      this.line = this.draw.path()
+      this.line.opacity(0.5)
+      this.node.styleLine(this.line, this.node)
+      // 同级位置占位符
+      this.placeholder = this.draw.rect().fill({
+        color: this.node.style.merge('lineColor', true)
+      })
+      this.mindMap.draw.add(this.clone)
    }
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-23 19:35:16 
-     * @Desc: 移除克隆节点 
-     */
-    removeCloneNode() {
-        if (!this.clone) {
-            return
-        }
-        this.clone.remove()
-        this.line.remove()
-        this.placeholder.remove()
+  //  移除克隆节点
+  removeCloneNode() {
+    if (!this.clone) {
+      return
    }
+    this.clone.remove()
+    this.line.remove()
+    this.placeholder.remove()
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-23 18:53:47 
-     * @Desc: 拖动中 
-     */
-    onMove(x, y) {
-        if (!this.isMousedown) {
-            return;
-        }
-        this.createCloneNode()
-        let {
-            scaleX,
-            scaleY,
-            translateX,
-            translateY
-        } = this.drawTransform
-        this.cloneNodeLeft = x - this.offsetX
-        this.cloneNodeTop = y - this.offsetY
-        x = (this.cloneNodeLeft - translateX) / scaleX
-        y = (this.cloneNodeTop - translateY) / scaleY
-        let t = this.clone.transform()
-        this.clone.translate(x - t.translateX, y - t.translateY)
-        // 连接线
-        let parent = this.node.parent
-        this.line.plot(this.quadraticCurvePath(parent.left + parent.width / 2, parent.top + parent.height / 2, x + this.node.width / 2, y + this.node.height / 2))
-        this.checkOverlapNode()
+  //  拖动中
+  onMove(x, y) {
+    if (!this.isMousedown) {
+      return
    }
+    this.createCloneNode()
+    let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+    this.cloneNodeLeft = x - this.offsetX
+    this.cloneNodeTop = y - this.offsetY
+    x = (this.cloneNodeLeft - translateX) / scaleX
+    y = (this.cloneNodeTop - translateY) / scaleY
+    let t = this.clone.transform()
+    this.clone.translate(x - t.translateX, y - t.translateY)
+    // 连接线
+    let parent = this.node.parent
+    this.line.plot(
+      this.quadraticCurvePath(
+        parent.left + parent.width / 2,
+        parent.top + parent.height / 2,
+        x + this.node.width / 2,
+        y + this.node.height / 2
+      )
+    )
+    this.checkOverlapNode()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 10:20:43 
-     * @Desc: 检测重叠节点 
-     */
-    checkOverlapNode() {
-        if (!this.drawTransform) {
-            return
-        }
-        let {
-            scaleX,
-            scaleY,
-            translateX,
-            translateY
-        } = this.drawTransform
-        let checkRight = this.cloneNodeLeft + this.node.width * scaleX
-        let checkBottom = this.cloneNodeTop + this.node.height * scaleX
-        this.overlapNode = null
-        this.prevNode = null
-        this.nextNode = null
-        this.placeholder.size(0, 0)
-        bfsWalk(this.mindMap.renderer.root, (node) => {
-            if (node.nodeData.data.isActive) {
-                this.mindMap.renderer.setNodeActive(node, false)
-            }
-            if (node === this.node || this.node.isParent(node)) {
-                return
-            }
-            if (this.overlapNode || this.prevNode && this.nextNode) {
-                return
-            }
-            let {
-                left,
-                top,
-                width,
-                height
-            } = node
-            let _left = left
-            let _top = top
-            let _bottom = top + height
-            let right = (left + width) * scaleX + translateX
-            let bottom = (top + height) * scaleY + translateY
-            left = left * scaleX + translateX
-            top = top * scaleY + translateY
-            // 检测是否重叠
-            if (!this.overlapNode) {
-                if (
-                    left <= checkRight && right >= this.cloneNodeLeft &&
-                    top <= checkBottom && bottom >= this.cloneNodeTop
-                ) {
-                    this.overlapNode = node
-                }
-            }
-            // 检测兄弟节点位置
-            if (!this.prevNode && !this.nextNode && this.node.isBrother(node)) {
-                if (left <= checkRight && right >= this.cloneNodeLeft) {
-                    if (this.cloneNodeTop > bottom && this.cloneNodeTop <= bottom + 10) {
-                        this.prevNode = node
-                        this.placeholder.size(node.width, 10).move(_left, _bottom)
-                    } else if (checkBottom < top && checkBottom >= top - 10) {
-                        this.nextNode = node
-                        this.placeholder.size(node.width, 10).move(_left, _top - 10)
-                    }
-                }
-            }
-        })
-        if (this.overlapNode) {
-            this.mindMap.renderer.setNodeActive(this.overlapNode, true)
-        }
+  //  检测重叠节点
+  checkOverlapNode() {
+    if (!this.drawTransform) {
+      return
    }
+    let x = this.mouseMoveX
+    let y = this.mouseMoveY
+    this.overlapNode = null
+    this.prevNode = null
+    this.nextNode = null
+    this.placeholder.size(0, 0)
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node.nodeData.data.isActive) {
+        this.mindMap.renderer.setNodeActive(node, false)
+      }
+      if (node === this.node || this.node.isParent(node)) {
+        return
+      }
+      if (this.overlapNode || (this.prevNode && this.nextNode)) {
+        return
+      }
+      let nodeRect = this.getNodeRect(node)
+      let oneFourthHeight = nodeRect.height / 4
+      // 前一个和后一个节点
+      let checkList = node.parent ? node.parent.children.filter((item) => {
+        return item !== this.node
+      }) : []
+      let index = checkList.findIndex((item) => {
+        return item === node
+      })
+      let prevBrother = null
+      let nextBrother = null
+      if (index !== -1) {
+        if (index - 1 >= 0) {
+          prevBrother = checkList[index - 1]
+        }
+        if (index + 1 <= checkList.length - 1) {
+          nextBrother = checkList[index + 1]
+        }
+      }
+      // 和前一个兄弟节点的距离
+      let prevBrotherOffset = 0
+      if (prevBrother) {
+        let prevNodeRect = this.getNodeRect(prevBrother)  
+        prevBrotherOffset = nodeRect.top - prevNodeRect.bottom
+        // 间距小于10就当它不存在
+        prevBrotherOffset = prevBrotherOffset >= 10 ? prevBrotherOffset / 2 : 0
+      } else {
+        // 没有前一个兄弟节点，那么假设和前一个节点的距离为20
+        prevBrotherOffset = 10
+      }
+      // 和后一个兄弟节点的距离
+      let nextBrotherOffset = 0
+      if (nextBrother) {
+        let nextNodeRect = this.getNodeRect(nextBrother)
+        nextBrotherOffset = nextNodeRect.top - nodeRect.bottom
+        nextBrotherOffset = nextBrotherOffset >= 10 ? nextBrotherOffset / 2 : 0
+      } else {
+        nextBrotherOffset = 10
+      }
+      if (nodeRect.left <= x && nodeRect.right >= x) {
+        // 检测兄弟节点位置
+        if (!this.overlapNode && !this.prevNode && !this.nextNode && !node.isRoot) {
+          let checkIsPrevNode = nextBrotherOffset > 0 ? // 距离下一个兄弟节点的距离大于0
+            y > nodeRect.bottom && y <= (nodeRect.bottom + nextBrotherOffset) : // 那么在当前节点外底部判断
+            y >= nodeRect.bottom - oneFourthHeight && y <= nodeRect.bottom // 否则在当前节点内底部1/4区间判断
+          let checkIsNextNode = prevBrotherOffset > 0 ? // 距离上一个兄弟节点的距离大于0
+            y < nodeRect.top && y >= (nodeRect.top - prevBrotherOffset) : // 那么在当前节点外底部判断
+            y >= nodeRect.top && y <= nodeRect.top + oneFourthHeight
+          if (checkIsPrevNode) {
+            this.prevNode = node
+            let size = nextBrotherOffset > 0 ? nextBrotherOffset : 5
+            this.placeholder.size(node.width, size).move(nodeRect.originLeft, nodeRect.originBottom)
+          } else if (checkIsNextNode) {
+            this.nextNode = node
+            let size = prevBrotherOffset > 0 ? prevBrotherOffset : 5
+            this.placeholder.size(node.width, size).move(nodeRect.originLeft, nodeRect.originTop - size)
+          }
+        }
+        // 检测是否重叠
+        if (!this.overlapNode && !this.prevNode && !this.nextNode) {
+          if (
+            nodeRect.top + (prevBrotherOffset > 0 ? 0 : oneFourthHeight) <= y &&
+            nodeRect.bottom - (nextBrotherOffset > 0 ? 0 : oneFourthHeight) >= y
+          ) {
+            this.overlapNode = node
+          }
+        }
+      }
+    })
+    if (this.overlapNode) {
+      this.mindMap.renderer.setNodeActive(this.overlapNode, true)
+    }
+  }
+
+  // 计算节点的位置尺寸信息
+  getNodeRect(node) {
+    let { scaleX, scaleY, translateX, translateY } = this.drawTransform
+    let { left, top, width, height } = node
+    let originLeft = left
+    let originTop = top
+    let originBottom = top + height
+    let right = (left + width) * scaleX + translateX
+    let bottom = (top + height) * scaleY + translateY
+    left = left * scaleX + translateX
+    top = top * scaleY + translateY
+    return {
+      width,
+      height,
+      left,
+      top,
+      right,
+      bottom,
+      originLeft,
+      originTop,
+      originBottom
+    }
+  }
 }

-export default Drag
+Drag.instanceName = 'drag'
+
+export default Drag
--- a/simple-mind-map/src/Event.js
+++ b/simple-mind-map/src/Event.js
@@ -1,182 +1,151 @@
 import EventEmitter from 'eventemitter3'
+import { CONSTANTS } from './utils/constant'

-/** 
- * javascript comment 
- * @Author: 王林25 
- * @Date: 2021-04-07 14:53:09 
- * @Desc: 事件类 
- */
+//  事件类
 class Event extends EventEmitter {
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:53:25 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        super()
-        this.opt = opt
-        this.mindMap = opt.mindMap
-        this.isLeftMousedown = false
-        this.mousedownPos = {
-            x: 0,
-            y: 0
-        }
-        this.mousemovePos = {
-            x: 0,
-            y: 0
-        }
-        this.mousemoveOffset = {
-            x: 0,
-            y: 0
-        }
-        this.bindFn()
-        this.bind()
+  //  构造函数
+  constructor(opt = {}) {
+    super()
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.isLeftMousedown = false
+    this.mousedownPos = {
+      x: 0,
+      y: 0
    }
+    this.mousemovePos = {
+      x: 0,
+      y: 0
+    }
+    this.mousemoveOffset = {
+      x: 0,
+      y: 0
+    }
+    this.bindFn()
+    this.bind()
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:52:24 
-     * @Desc: 绑定函数上下文 
-     */
-    bindFn() {
-        this.onDrawClick = this.onDrawClick.bind(this)
-        this.onMousedown = this.onMousedown.bind(this)
-        this.onMousemove = this.onMousemove.bind(this)
-        this.onMouseup = this.onMouseup.bind(this)
-        this.onMousewheel = this.onMousewheel.bind(this)
-        this.onContextmenu = this.onContextmenu.bind(this)
-        this.onSvgMousedown = this.onSvgMousedown.bind(this)
-    }
+  //  绑定函数上下文
+  bindFn() {
+    this.onDrawClick = this.onDrawClick.bind(this)
+    this.onMousedown = this.onMousedown.bind(this)
+    this.onMousemove = this.onMousemove.bind(this)
+    this.onMouseup = this.onMouseup.bind(this)
+    this.onMousewheel = this.onMousewheel.bind(this)
+    this.onContextmenu = this.onContextmenu.bind(this)
+    this.onSvgMousedown = this.onSvgMousedown.bind(this)
+    this.onKeyup = this.onKeyup.bind(this)
+    this.onMouseenter = this.onMouseenter.bind(this)
+    this.onMouseleave = this.onMouseleave.bind(this)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:53:43 
-     * @Desc: 绑定事件 
-     */
-    bind() {
-        this.mindMap.svg.on('click', this.onDrawClick)
-        this.mindMap.el.addEventListener('mousedown', this.onMousedown)
-        this.mindMap.svg.on('mousedown', this.onSvgMousedown)
-        window.addEventListener('mousemove', this.onMousemove)
-        window.addEventListener('mouseup', this.onMouseup)
-        // 兼容火狐浏览器
-        if(window.navigator.userAgent.toLowerCase().indexOf("firefox") != -1){
-            this.mindMap.el.addEventListener('DOMMouseScroll', this.onMousewheel)
-        } else {
-            this.mindMap.el.addEventListener('mousewheel', this.onMousewheel)
-        }
-        this.mindMap.svg.on('contextmenu', this.onContextmenu)
-    }
+  //  绑定事件
+  bind() {
+    this.mindMap.svg.on('click', this.onDrawClick)
+    this.mindMap.el.addEventListener('mousedown', this.onMousedown)
+    this.mindMap.svg.on('mousedown', this.onSvgMousedown)
+    window.addEventListener('mousemove', this.onMousemove)
+    window.addEventListener('mouseup', this.onMouseup)
+    this.mindMap.el.addEventListener('wheel', this.onMousewheel)
+    this.mindMap.svg.on('contextmenu', this.onContextmenu)
+    this.mindMap.svg.on('mouseenter', this.onMouseenter)
+    this.mindMap.svg.on('mouseleave', this.onMouseleave)
+    window.addEventListener('keyup', this.onKeyup)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:40:51 
-     * @Desc: 解绑事件 
-     */
-    unbind() {
-        this.mindMap.svg.off('click', this.onDrawClick)
-        this.mindMap.el.removeEventListener('mousedown', this.onMousedown)
-        window.removeEventListener('mousemove', this.onMousemove)
-        window.removeEventListener('mouseup', this.onMouseup)
-        this.mindMap.el.removeEventListener('mousewheel', this.onMousewheel)
-        this.mindMap.svg.off('contextmenu', this.onContextmenu)
-    }
+  //  解绑事件
+  unbind() {
+    this.mindMap.svg.off('click', this.onDrawClick)
+    this.mindMap.el.removeEventListener('mousedown', this.onMousedown)
+    window.removeEventListener('mousemove', this.onMousemove)
+    window.removeEventListener('mouseup', this.onMouseup)
+    this.mindMap.el.removeEventListener('wheel', this.onMousewheel)
+    this.mindMap.svg.off('contextmenu', this.onContextmenu)
+    this.mindMap.svg.off('mouseenter', this.onMouseenter)
+    this.mindMap.svg.off('mouseleave', this.onMouseleave)
+    window.removeEventListener('keyup', this.onKeyup)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 13:19:39 
-     * @Desc:  画布的单击事件
-     */
-    onDrawClick(e) {
-        this.emit('draw_click', e)
-    }
+  //   画布的单击事件
+  onDrawClick(e) {
+    this.emit('draw_click', e)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-16 13:37:30 
-     * @Desc:  svg画布的鼠标按下事件
-     */
-    onSvgMousedown(e) {
-        this.emit('svg_mousedown', e)
-    }
+  //   svg画布的鼠标按下事件
+  onSvgMousedown(e) {
+    this.emit('svg_mousedown', e)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:17:35 
-     * @Desc: 鼠标按下事件 
-     */
-    onMousedown(e) {
-        // e.preventDefault()
-        // 鼠标左键
-        if (e.which === 1) {
-            this.isLeftMousedown = true
-        }
-        this.mousedownPos.x = e.clientX
-        this.mousedownPos.y = e.clientY
-        this.emit('mousedown', e, this)
+  //  鼠标按下事件
+  onMousedown(e) {
+    // 鼠标左键
+    if (e.which === 1) {
+      this.isLeftMousedown = true
    }
+    this.mousedownPos.x = e.clientX
+    this.mousedownPos.y = e.clientY
+    this.emit('mousedown', e, this)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:18:32 
-     * @Desc: 鼠标移动事件 
-     */
-    onMousemove(e) {
-        // e.preventDefault()
-        this.mousemovePos.x = e.clientX
-        this.mousemovePos.y = e.clientY
-        this.mousemoveOffset.x = e.clientX - this.mousedownPos.x
-        this.mousemoveOffset.y = e.clientY - this.mousedownPos.y
-        this.emit('mousemove', e, this)
-        if (this.isLeftMousedown) {
-            this.emit('drag', e, this)
-        }
+  //  鼠标移动事件
+  onMousemove(e) {
+    this.mousemovePos.x = e.clientX
+    this.mousemovePos.y = e.clientY
+    this.mousemoveOffset.x = e.clientX - this.mousedownPos.x
+    this.mousemoveOffset.y = e.clientY - this.mousedownPos.y
+    this.emit('mousemove', e, this)
+    if (this.isLeftMousedown) {
+      e.preventDefault()
+      this.emit('drag', e, this)
    }
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:18:57 
-     * @Desc: 鼠标松开事件 
-     */
-    onMouseup(e) {
-        this.isLeftMousedown = false
-        this.emit('mouseup', e, this)
-    }
+  //  鼠标松开事件
+  onMouseup(e) {
+    this.isLeftMousedown = false
+    this.emit('mouseup', e, this)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:46:27 
-     * @Desc: 鼠标滚动 
-     */
-    onMousewheel(e) {
-        e.stopPropagation()
-        e.preventDefault()
-        let dir
-        if ((e.wheelDeltaY || e.detail) > 0) {
-            dir = 'up'
-        } else {
-            dir = 'down'
-        }
-        this.emit('mousewheel', e, dir, this)
+  //  鼠标滚动
+  onMousewheel(e) {
+    e.stopPropagation()
+    e.preventDefault()
+    let dir
+    // 解决mac触控板双指缩放方向相反的问题
+    if (e.ctrlKey) {
+      if (e.deltaY > 0) dir = CONSTANTS.DIR.UP
+      if (e.deltaY < 0) dir = CONSTANTS.DIR.DOWN
+      if (e.deltaX > 0) dir = CONSTANTS.DIR.LEFT
+      if (e.deltaX < 0) dir = CONSTANTS.DIR.RIGHT
+    } else {
+      if ((e.wheelDeltaY || e.detail) > 0) dir = CONSTANTS.DIR.UP
+      if ((e.wheelDeltaY || e.detail) < 0) dir = CONSTANTS.DIR.DOWN
+      if ((e.wheelDeltaX || e.detail) > 0) dir = CONSTANTS.DIR.LEFT
+      if ((e.wheelDeltaX || e.detail) < 0) dir = CONSTANTS.DIR.RIGHT
    }
+    this.emit('mousewheel', e, dir, this)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-10 22:34:13 
-     * @Desc: 鼠标右键菜单事件 
-     */
-    onContextmenu(e) {
-        e.preventDefault()
-        this.emit('contextmenu', e)
-    }
+  //  鼠标右键菜单事件
+  onContextmenu(e) {
+    e.preventDefault()
+    this.emit('contextmenu', e)
+  }
+
+  //  按键松开事件
+  onKeyup(e) {
+    this.emit('keyup', e)
+  }
+
+  // 进入
+  onMouseenter(e) {
+    this.emit('svg_mouseenter', e)
+  }
+
+  // 离开
+  onMouseleave(e) {
+    this.emit('svg_mouseleave', e)
+  }
 }

-export default Event
+export default Event
--- a/simple-mind-map/src/Export.js
+++ b/simple-mind-map/src/Export.js
@@ -1,249 +1,254 @@
 import { imgToDataUrl, downloadFile } from './utils'
 import JsPDF from 'jspdf'
-import {
-    SVG,
-} from '@svgdotjs/svg.js'
+import { SVG } from '@svgdotjs/svg.js'
+import drawBackgroundImageToCanvas from './utils/simulateCSSBackgroundInCanvas'
+import { transformToMarkdown } from './parse/toMarkdown'
 const URL = window.URL || window.webkitURL || window

-/** 
- * @Author: 王林 
- * @Date: 2021-07-01 22:05:16 
- * @Desc: 导出类 
- */
+//  导出类
 class Export {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-01 22:05:42 
-     * @Desc: 构造函数 
-     */
-    constructor(opt) {
-        this.mindMap = opt.mindMap
-        this.exportPadding = this.mindMap.opt.exportPadding
-    }
+  //  构造函数
+  constructor(opt) {
+    this.mindMap = opt.mindMap
+    this.exportPadding = this.mindMap.opt.exportPadding
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-02 07:44:06 
-     * @Desc: 导出 
-     */
-    async export(type, isDownload = true, name = '思维导图', ...args) {
-        if (this[type]) {
-            let result = await this[type](name, ...args)
-            if (isDownload && type !== 'pdf') {
-                downloadFile(result, name + '.' + type)
-            }
-            return result
-        } else {
-            return null
+  //  导出
+  async export(type, isDownload = true, name = '思维导图', ...args) {
+    if (this[type]) {
+      let result = await this[type](name, ...args)
+      if (isDownload && type !== 'pdf') {
+        downloadFile(result, name + '.' + type)
+      }
+      return result
+    } else {
+      return null
+    }
+  }
+
+  //  获取svg数据
+  async getSvgData(domToImage) {
+    let { svg, svgHTML } = this.mindMap.getSvgData()
+    // 把图片的url转换成data:url类型，否则导出会丢失图片
+    let imageList = svg.find('image')
+    let task = imageList.map(async item => {
+      let imgUlr = item.attr('href') || item.attr('xlink:href')
+      let imgData = await imgToDataUrl(imgUlr)
+      item.attr('href', imgData)
+    })
+    await Promise.all(task)
+    // 如果开启了富文本编辑，需要把svg中的dom元素转换成图片
+    let nodeWithDomToImg = null
+    if (domToImage && this.mindMap.richText) {
+      let res = await this.mindMap.richText.handleSvgDomElements(svg)
+      if (res) {
+        nodeWithDomToImg = res.svg
+        svgHTML = res.svgHTML
+      }
+    }
+    return {
+      node: svg,
+      str: svgHTML,
+      nodeWithDomToImg
+    }
+  }
+
+  //   svg转png
+  svgToPng(svgSrc) {
+    return new Promise((resolve, reject) => {
+      const img = new Image()
+      // 跨域图片需要添加这个属性，否则画布被污染了无法导出图片
+      img.setAttribute('crossOrigin', 'anonymous')
+      img.onload = async () => {
+        try {
+          let canvas = document.createElement('canvas')
+          canvas.width = img.width + this.exportPadding * 2
+          canvas.height = img.height + this.exportPadding * 2
+          let ctx = canvas.getContext('2d')
+          // 绘制背景
+          await this.drawBackgroundToCanvas(ctx, canvas.width, canvas.height)
+          // 图片绘制到canvas里
+          ctx.drawImage(
+            img,
+            0,
+            0,
+            img.width,
+            img.height,
+            this.exportPadding,
+            this.exportPadding,
+            img.width,
+            img.height
+          )
+          resolve(canvas.toDataURL())
+        } catch (error) {
+          reject(error)
        }
-    }
+      }
+      img.onerror = e => {
+        reject(e)
+      }
+      img.src = svgSrc
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 14:57:40 
-     * @Desc: 获取svg数据 
-     */
-    async getSvgData() {
-        let { svg, svgHTML } = this.mindMap.miniMap.getMiniMap()
-        // 把图片的url转换成data:url类型，否则导出会丢失图片
-        let imageList = svg.find('image')
-        let task = imageList.map(async (item) => {
-            let imgUlr = item.attr('href') || item.attr('xlink:href')
-            let imgData = await imgToDataUrl(imgUlr)
-            item.attr('href', imgData)
+  //  在canvas上绘制思维导图背景
+  drawBackgroundToCanvas(ctx, width, height) {
+    return new Promise((resolve, reject) => {
+      let {
+        backgroundColor = '#fff',
+        backgroundImage,
+        backgroundRepeat = 'no-repeat',
+        backgroundPosition = 'center center',
+        backgroundSize = 'cover',
+      } = this.mindMap.themeConfig
+      // 背景颜色
+      ctx.save()
+      ctx.rect(0, 0, width, height)
+      ctx.fillStyle = backgroundColor
+      ctx.fill()
+      ctx.restore()
+      // 背景图片
+      if (backgroundImage && backgroundImage !== 'none') {
+        ctx.save()
+        drawBackgroundImageToCanvas(ctx, width, height, backgroundImage, {
+          backgroundRepeat,
+          backgroundPosition,
+          backgroundSize
+        }, (err) => {
+          if (err) {
+            reject(err)
+          } else {
+            resolve()
+          }
+          ctx.restore()
        })
-        await Promise.all(task)
-        return {
-            node: svg,
-            str: svgHTML
+      } else {
+        resolve()
+      }
+    })
+  }
+
+  //  导出为png
+  /**
+   * 方法1.把svg的图片都转化成data:url格式，再转换
+   * 方法2.把svg的图片提取出来再挨个绘制到canvas里，最后一起转换
+   */
+  async png() {
+    let { str } = await this.getSvgData(true)
+    // 转换成blob数据
+    let blob = new Blob([str], {
+      type: 'image/svg+xml'
+    })
+    // 转换成data:url数据
+    let svgUrl = URL.createObjectURL(blob)
+    // 绘制到canvas上
+    let imgDataUrl = await this.svgToPng(svgUrl)
+    URL.revokeObjectURL(svgUrl)
+    return imgDataUrl
+  }
+
+  //  导出为pdf
+  async pdf(name) {
+    let img = await this.png()
+    let pdf = new JsPDF('', 'pt', 'a4')
+    let a4Width = 595
+    let a4Height = 841
+    let a4Ratio = a4Width / a4Height
+    let image = new Image()
+    image.onload = () => {
+      let imageWidth = image.width
+      let imageHeight = image.height
+      let imageRatio = imageWidth / imageHeight
+      let w, h
+      if (imageWidth <= a4Width && imageHeight <= a4Height) {
+        // 使用图片原始宽高
+        w = imageWidth
+        h = imageHeight
+      } else if (a4Ratio > imageRatio) {
+        // 以a4Height为高度，缩放图片宽度
+        w = imageRatio * a4Height
+        h = a4Height
+      } else {
+        // 以a4Width为宽度，缩放图片高度
+        w = a4Width
+        h = a4Width / imageRatio
+      }
+      pdf.addImage(img, 'PNG', (a4Width - w) / 2, (a4Height - h) / 2, w, h)
+      pdf.save(name)
+    }
+    image.src = img
+  }
+
+  //  在svg上绘制思维导图背景
+  drawBackgroundToSvg(svg) {
+    return new Promise(async resolve => {
+      let {
+        backgroundColor = '#fff',
+        backgroundImage,
+        backgroundRepeat = 'repeat'
+      } = this.mindMap.themeConfig
+      // 背景颜色
+      svg.css('background-color', backgroundColor)
+      // 背景图片
+      if (backgroundImage && backgroundImage !== 'none') {
+        let imgDataUrl = await imgToDataUrl(backgroundImage)
+        svg.css('background-image', `url(${imgDataUrl})`)
+        svg.css('background-repeat', backgroundRepeat)
+        resolve()
+      } else {
+        resolve()
+      }
+    })
+  }
+
+  //  导出为svg
+  // domToImage：是否将svg中的dom节点转换成图片的形式
+  // plusCssText：附加的css样式，如果svg中存在dom节点，想要设置一些针对节点的样式可以通过这个参数传入
+  async svg(name, domToImage = false, plusCssText) {
+    let { node, nodeWithDomToImg } = await this.getSvgData(domToImage)
+    // 开启了节点富文本编辑
+    if (this.mindMap.richText) {
+      if (domToImage) {
+        node = nodeWithDomToImg
+      } else if (plusCssText) {
+        let foreignObjectList = node.find('foreignObject')
+        if (foreignObjectList.length > 0) {
+          foreignObjectList[0].add(SVG(`<style>${plusCssText}</style>`))
        }
+      }
    }
+    node.first().before(SVG(`<title>${name}</title>`))
+    await this.drawBackgroundToSvg(node)
+    let str = node.svg()
+    // 转换成blob数据
+    let blob = new Blob([str], {
+      type: 'image/svg+xml'
+    })
+    return URL.createObjectURL(blob)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 15:25:19 
-     * @Desc:  svg转png
-     */
-    svgToPng(svgSrc) {
-        return new Promise((resolve, reject) => {
-            const img = new Image()
-            // 跨域图片需要添加这个属性，否则画布被污染了无法导出图片
-            img.setAttribute('crossOrigin', 'anonymous')
-            img.onload = async () => {
-                try {
-                    let canvas = document.createElement('canvas')
-                    canvas.width = img.width + this.exportPadding * 2
-                    canvas.height = img.height + this.exportPadding * 2
-                    let ctx = canvas.getContext('2d')
-                    // 绘制背景
-                    await this.drawBackgroundToCanvas(ctx, canvas.width, canvas.height)
-                    // 图片绘制到canvas里
-                    ctx.drawImage(img, 0, 0, img.width, img.height, this.exportPadding, this.exportPadding, img.width, img.height)
-                    resolve(canvas.toDataURL())
-                } catch (error) {
-                    reject(error)
-                }
-            }
-            img.onerror = (e) => {
-                reject(e)
-            }
-            img.src = svgSrc
-        })
-    }
+  //  导出为json
+  json(name, withConfig = true) {
+    let data = this.mindMap.getData(withConfig)
+    let str = JSON.stringify(data)
+    let blob = new Blob([str])
+    return URL.createObjectURL(blob)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 15:32:07 
-     * @Desc: 在canvas上绘制思维导图背景
-     */
-    drawBackgroundToCanvas(ctx, width, height) {
-        return new Promise((resolve, rejct) => {
-            let { backgroundColor = '#fff', backgroundImage, backgroundRepeat = "repeat" } = this.mindMap.themeConfig
-            // 背景颜色
-            ctx.save()
-            ctx.rect(0, 0, width, height)
-            ctx.fillStyle = backgroundColor
-            ctx.fill()
-            ctx.restore()
-            // 背景图片
-            if (backgroundImage && backgroundImage !== 'none') {
-                ctx.save()
-                let img = new Image()
-                img.src = backgroundImage
-                img.onload = () => {
-                    let pat = ctx.createPattern(img, backgroundRepeat)
-                    ctx.rect(0, 0, width, height)
-                    ctx.fillStyle = pat
-                    ctx.fill()
-                    ctx.restore()
-                    resolve()
-                }
-                img.onerror = (e) => {
-                    rejct(e)
-                }
-            } else {
-                resolve()
-            }
-        })
-    }
+  //  专有文件，其实就是json文件
+  smm(name, withConfig) {
+    return this.json(name, withConfig)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-01 22:09:51 
-     * @Desc: 导出为png 
-     * 方法1.把svg的图片都转化成data:url格式，再转换
-     * 方法2.把svg的图片提取出来再挨个绘制到canvas里，最后一起转换
-     */
-    async png() {
-        let { str } = await this.getSvgData()
-        // 转换成blob数据
-        let blob = new Blob([str], {
-            type: 'image/svg+xml'
-        })
-        // 转换成data:url数据
-        let svgUrl = URL.createObjectURL(blob)
-        // 绘制到canvas上
-        let imgDataUrl = await this.svgToPng(svgUrl)
-        URL.revokeObjectURL(svgUrl)
-        return imgDataUrl
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-08-08 19:23:08 
-     * @Desc: 导出为pdf 
-     */
-    async pdf(name) {
-        let img = await this.png()
-        let pdf = new JsPDF('', 'pt', 'a4')
-        let a4Width = 595
-        let a4Height = 841
-        let a4Ratio = a4Width / a4Height
-        let image = new Image()
-        image.onload = () => {
-            let imageWidth = image.width
-            let imageHeight = image.height
-            let imageRatio = imageWidth / imageHeight
-            let w, h
-            if (imageWidth <= a4Width && imageHeight <= a4Height) {
-                // 使用图片原始宽高
-                w = imageWidth
-                h = imageHeight
-            } else if (a4Ratio > imageRatio) {
-                // 以a4Height为高度，缩放图片宽度
-                w = imageRatio * a4Height
-                h = a4Height
-            } else {
-                // 以a4Width为宽度，缩放图片高度
-                w = a4Width
-                h = a4Width / imageRatio
-            }
-            pdf.addImage(img, 'PNG', (a4Width - w) / 2, (a4Height - h) / 2, w, h)
-            pdf.save(name)
-        }
-        image.src = img
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 15:32:07 
-     * @Desc: 在svg上绘制思维导图背景
-     */
-    drawBackgroundToSvg(svg) {
-        return new Promise(async (resolve, rejct) => {
-            let { backgroundColor = '#fff', backgroundImage, backgroundRepeat = "repeat" } = this.mindMap.themeConfig
-            // 背景颜色
-            svg.css('background-color', backgroundColor)
-            // 背景图片
-            if (backgroundImage && backgroundImage !== 'none') {
-                let imgDataUrl = await imgToDataUrl(backgroundImage)
-                svg.css('background-image', `url(${imgDataUrl})`)
-                svg.css('background-repeat', backgroundRepeat)
-                resolve()
-            } else {
-                resolve()
-            }
-        })
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 14:54:07 
-     * @Desc: 导出为svg 
-     */
-    async svg(name) {
-        let { node } = await this.getSvgData()
-        node.first().before(SVG(`<title>${name}</title>`))
-        await this.drawBackgroundToSvg(node)
-        let str = node.svg()
-        // 转换成blob数据
-        let blob = new Blob([str], {
-            type: 'image/svg+xml'
-        })
-        return URL.createObjectURL(blob)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-03 22:19:17 
-     * @Desc: 导出为json 
-     */
-    json (name, withConfig = true) {
-        let data = this.mindMap.getData(withConfig)
-        let str = JSON.stringify(data)
-        let blob = new Blob([str])
-        return URL.createObjectURL(blob)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-03 22:24:24 
-     * @Desc: 专有文件，其实就是json文件 
-     */
-    smm (name, withConfig) {
-        return this.json(name, withConfig);
-    }
+  // markdown文件
+  md() {
+    let data = this.mindMap.getData()
+    let content = transformToMarkdown(data)
+    let blob = new Blob([content])
+    return URL.createObjectURL(blob)
+  }
 }

+Export.instanceName = 'doExport'
+
 export default Export
--- a/simple-mind-map/src/KeyCommand.js
+++ b/simple-mind-map/src/KeyCommand.js
@@ -1,200 +1,161 @@
-import { keyMap } from './utils/keyMap';
-/** 
- * @Author: 王林 
- * @Date: 2021-04-24 15:20:46 
- * @Desc: 快捷按键、命令处理类 
- */
+import { keyMap } from './utils/keyMap'
+//  快捷按键、命令处理类
 export default class KeyCommand {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 15:21:32 
-     * @Desc: 构造函数 
-     */
-    constructor(opt) {
-        this.opt = opt
-        this.mindMap = opt.mindMap
-        this.shortcutMap = {
-            //Enter: [fn]
+  //  构造函数
+  constructor(opt) {
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.shortcutMap = {
+      //Enter: [fn]
+    }
+    this.shortcutMapCache = {}
+    this.isPause = false
+    this.isInSvg = false
+    this.bindEvent()
+  }
+
+  //  暂停快捷键响应
+  pause() {
+    this.isPause = true
+  }
+
+  //  恢复快捷键响应
+  recovery() {
+    this.isPause = false
+  }
+
+  //  保存当前注册的快捷键数据，然后清空快捷键数据
+  save() {
+    this.shortcutMapCache = this.shortcutMap
+    this.shortcutMap = {}
+  }
+
+  //  恢复保存的快捷键数据，然后清空缓存数据
+  restore() {
+    this.shortcutMap = this.shortcutMapCache
+    this.shortcutMapCache = {}
+  }
+
+  //  绑定事件
+  bindEvent() {
+    // 只有当鼠标在画布内才响应快捷键
+    this.mindMap.on('svg_mouseenter', () => {
+      this.isInSvg = true
+    })
+    this.mindMap.on('svg_mouseleave', () => {
+      if (this.mindMap.richText && this.mindMap.richText.showTextEdit) {
+        return
+      }
+      if (this.mindMap.renderer.textEdit.showTextEdit) {
+        return
+      }
+      this.isInSvg = false
+    })
+    window.addEventListener('keydown', e => {
+      if (this.isPause || (this.mindMap.opt.enableShortcutOnlyWhenMouseInSvg && !this.isInSvg)) {
+        return
+      }
+      Object.keys(this.shortcutMap).forEach(key => {
+        if (this.checkKey(e, key)) {
+          e.stopPropagation()
+          e.preventDefault()
+          this.shortcutMap[key].forEach(fn => {
+            fn()
+          })
        }
-        this.shortcutMapCache = {}
-        this.isPause = false
-        this.bindEvent()
-    }
+      })
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-08-14 08:57:55 
-     * @Desc: 暂停快捷键响应 
-     */
-    pause() {
-        this.isPause = true
+  //  检查键值是否符合
+  checkKey(e, key) {
+    let o = this.getOriginEventCodeArr(e)
+    let k = this.getKeyCodeArr(key)
+    if (o.length !== k.length) {
+      return false
    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2022-08-14 08:58:43 
-     * @Desc: 恢复快捷键响应 
-     */
-    recovery() {
-        this.isPause = false
+    for (let i = 0; i < o.length; i++) {
+      let index = k.findIndex(item => {
+        return item === o[i]
+      })
+      if (index === -1) {
+        return false
+      } else {
+        k.splice(index, 1)
+      }
    }
+    return true
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-08-16 16:29:01 
-     * @Desc: 保存当前注册的快捷键数据，然后清空快捷键数据
-     */
-    save() {
-        this.shortcutMapCache = this.shortcutMap
-        this.shortcutMap = {}
+  //  获取事件对象里的键值数组
+  getOriginEventCodeArr(e) {
+    let arr = []
+    if (e.ctrlKey || e.metaKey) {
+      arr.push(keyMap['Control'])
    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-08-16 16:29:38 
-     * @Desc: 恢复保存的快捷键数据，然后清空缓存数据 
-     */
-    restore() {
-        this.shortcutMap = this.shortcutMapCache
-        this.shortcutMapCache = {}
+    if (e.altKey) {
+      arr.push(keyMap['Alt'])
    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 15:23:22 
-     * @Desc: 绑定事件 
-     */
-    bindEvent() {
-        window.addEventListener('keydown', (e) => {
-            if (this.isPause) {
-                return
-            }
-            Object.keys(this.shortcutMap).forEach((key) => {
-                if (this.checkKey(e, key)) {
-                    e.stopPropagation()
-                    e.preventDefault()
-                    this.shortcutMap[key].forEach((fn) => {
-                        fn()
-                    })
-                }
-            })
-        })
+    if (e.shiftKey) {
+      arr.push(keyMap['Shift'])
    }
+    if (!arr.includes(e.keyCode)) {
+      arr.push(e.keyCode)
+    }
+    return arr
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 19:24:53 
-     * @Desc: 检查键值是否符合 
-     */
-    checkKey(e, key) {
-        let o = this.getOriginEventCodeArr(e)
-        let k = this.getKeyCodeArr(key)
-        if (o.length !== k.length) {
-            return false
+  //  获取快捷键对应的键值数组
+  getKeyCodeArr(key) {
+    let keyArr = key.split(/\s*\+\s*/)
+    let arr = []
+    keyArr.forEach(item => {
+      arr.push(keyMap[item])
+    })
+    return arr
+  }
+
+  //  添加快捷键命令
+  /**
+   * Enter
+   * Tab | Insert
+   * Shift + a
+   */
+  addShortcut(key, fn) {
+    key.split(/\s*\|\s*/).forEach(item => {
+      if (this.shortcutMap[item]) {
+        this.shortcutMap[item].push(fn)
+      } else {
+        this.shortcutMap[item] = [fn]
+      }
+    })
+  }
+
+  //  移除快捷键命令
+  removeShortcut(key, fn) {
+    key.split(/\s*\|\s*/).forEach(item => {
+      if (this.shortcutMap[item]) {
+        if (fn) {
+          let index = this.shortcutMap[item].findIndex(f => {
+            return f === fn
+          })
+          if (index !== -1) {
+            this.shortcutMap[item].splice(index, 1)
+          }
+        } else {
+          this.shortcutMap[item] = []
+          delete this.shortcutMap[item]
        }
-        for (let i = 0; i < o.length; i++) {
-            let index = k.findIndex((item) => {
-                return item === o[i];
-            })
-            if (index === -1) {
-                return false
-            } else {
-                k.splice(index, 1)
-            }
-        }
-        return true
-    }
+      }
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 19:15:19 
-     * @Desc: 获取事件对象里的键值数组 
-     */
-    getOriginEventCodeArr(e) {
-        let arr = []
-        if (e.ctrlKey || e.metaKey) {
-            arr.push(keyMap['Control'])
-        }
-        if (e.altKey) {
-            arr.push(keyMap['Alt'])
-        }
-        if (e.shiftKey) {
-            arr.push(keyMap['Shift'])
-        }
-        if (!arr.includes(e.keyCode)) {
-            arr.push(e.keyCode)
-        }
-        return arr
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 19:40:11 
-     * @Desc: 获取快捷键对应的键值数组 
-     */
-    getKeyCodeArr(key) {
-        let keyArr = key.split(/\s*\+\s*/)
-        let arr = []
-        keyArr.forEach((item) => {
-            arr.push(keyMap[item])
-        })
-        return arr
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 15:23:00 
-     * @Desc: 添加快捷键命令 
-     * Enter
-     * Tab | Insert
-     * Shift + a
-     */
-    addShortcut(key, fn) {
-        key.split(/\s*\|\s*/).forEach((item) => {
-            if (this.shortcutMap[item]) {
-                this.shortcutMap[item].push(fn)
-            } else {
-                this.shortcutMap[item] = [fn]
-            }
-        })
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-27 14:06:16 
-     * @Desc: 移除快捷键命令 
-     */
-    removeShortcut(key, fn) {
-        key.split(/\s*\|\s*/).forEach((item) => {
-            if (this.shortcutMap[item]) {
-                if (fn) {
-                    let index = this.shortcutMap[item].findIndex((f) => {
-                        return f === fn
-                    })
-                    if (index !== -1) {
-                        this.shortcutMap[item].splice(index, 1)
-                    }
-                } else {
-                    this.shortcutMap[item] = []
-                    delete this.shortcutMap[item]
-                }
-            }
-        })
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2022-08-14 08:49:58 
-     * @Desc: 获取指定快捷键的处理函数 
-     */
-    getShortcutFn(key) {
-        let res = []
-        key.split(/\s*\|\s*/).forEach((item) => {
-            res = this.shortcutMap[item] || []
-        })
-        return res
-    }
-}
+  //  获取指定快捷键的处理函数
+  getShortcutFn(key) {
+    let res = []
+    key.split(/\s*\|\s*/).forEach(item => {
+      res = this.shortcutMap[item] || []
+    })
+    return res
+  }
+}
--- a/simple-mind-map/src/KeyboardNavigation.js
+++ b/simple-mind-map/src/KeyboardNavigation.js
@@ -0,0 +1,237 @@
+import { bfsWalk } from './utils'
+import { CONSTANTS } from './utils/constant'
+
+//  键盘导航类
+class KeyboardNavigation {
+  //  构造函数
+  constructor(opt) {
+    this.opt = opt
+    this.mindMap = opt.mindMap
+    this.onKeyup = this.onKeyup.bind(this)
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.LEFT, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.LEFT)
+    })
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.UP, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.UP)
+    })
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.RIGHT, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.RIGHT)
+    })
+    this.mindMap.keyCommand.addShortcut(CONSTANTS.KEY_DIR.DOWN, () => {
+      this.onKeyup(CONSTANTS.KEY_DIR.DOWN)
+    })
+  }
+
+  //  处理按键事件
+  onKeyup(dir) {
+    if (this.mindMap.renderer.activeNodeList.length > 0) {
+      this.focus(dir)
+    } else {
+      let root = this.mindMap.renderer.root
+      this.mindMap.renderer.moveNodeToCenter(root)
+      root.active()
+    }
+  }
+
+  //  聚焦到下一个节点
+  focus(dir) {
+    // 当前聚焦的节点
+    let currentActiveNode = this.mindMap.renderer.activeNodeList[0]
+    // 当前聚焦节点的位置信息
+    let currentActiveNodeRect = this.getNodeRect(currentActiveNode)
+    // 寻找的下一个聚焦节点
+    let targetNode = null
+    let targetDis = Infinity
+    // 保存并维护距离最近的节点
+    let checkNodeDis = (rect, node) => {
+      let dis = this.getDistance(currentActiveNodeRect, rect)
+      if (dis < targetDis) {
+        targetNode = node
+        targetDis = dis
+      }
+    }
+
+    // 第一优先级：阴影算法
+    this.getFocusNodeByShadowAlgorithm({
+      currentActiveNode,
+      currentActiveNodeRect,
+      dir,
+      checkNodeDis
+    })
+
+    // 第二优先级：区域算法
+    if (!targetNode) {
+      this.getFocusNodeByAreaAlgorithm({
+        currentActiveNode,
+        currentActiveNodeRect,
+        dir,
+        checkNodeDis
+      })
+    }
+
+    // 第三优先级：简单算法
+    if (!targetNode) {
+      this.getFocusNodeBySimpleAlgorithm({
+        currentActiveNode,
+        currentActiveNodeRect,
+        dir,
+        checkNodeDis
+      })
+    }
+
+    // 找到了则让目标节点聚焦
+    if (targetNode) {
+      this.mindMap.renderer.moveNodeToCenter(targetNode)
+      targetNode.active()
+    }
+  }
+
+  //  1.简单算法
+  getFocusNodeBySimpleAlgorithm({
+    currentActiveNode,
+    currentActiveNodeRect,
+    dir,
+    checkNodeDis
+  }) {
+    // 遍历节点树
+    bfsWalk(this.mindMap.renderer.root, node => {
+      // 跳过当前聚焦的节点
+      if (node === currentActiveNode) return
+      // 当前遍历到的节点的位置信息
+      let rect = this.getNodeRect(node)
+      let { left, top, right, bottom } = rect
+      let match = false
+      // 按下了左方向键
+      if (dir === CONSTANTS.KEY_DIR.LEFT) {
+        // 判断节点是否在当前节点的左侧
+        match = right <= currentActiveNodeRect.left
+        // 按下了右方向键
+      } else if (dir === CONSTANTS.KEY_DIR.RIGHT) {
+        // 判断节点是否在当前节点的右侧
+        match = left >= currentActiveNodeRect.right
+        // 按下了上方向键
+      } else if (dir === CONSTANTS.KEY_DIR.UP) {
+        // 判断节点是否在当前节点的上面
+        match = bottom <= currentActiveNodeRect.top
+        // 按下了下方向键
+      } else if (dir === CONSTANTS.KEY_DIR.DOWN) {
+        // 判断节点是否在当前节点的下面
+        match = top >= currentActiveNodeRect.bottom
+      }
+      // 符合要求，判断是否是最近的节点
+      if (match) {
+        checkNodeDis(rect, node)
+      }
+    })
+  }
+
+  //  2.阴影算法
+  getFocusNodeByShadowAlgorithm({
+    currentActiveNode,
+    currentActiveNodeRect,
+    dir,
+    checkNodeDis
+  }) {
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node === currentActiveNode) return
+      let rect = this.getNodeRect(node)
+      let { left, top, right, bottom } = rect
+      let match = false
+      if (dir === CONSTANTS.KEY_DIR.LEFT) {
+        match =
+          left < currentActiveNodeRect.left &&
+          top < currentActiveNodeRect.bottom &&
+          bottom > currentActiveNodeRect.top
+      } else if (dir === CONSTANTS.KEY_DIR.RIGHT) {
+        match =
+          right > currentActiveNodeRect.right &&
+          top < currentActiveNodeRect.bottom &&
+          bottom > currentActiveNodeRect.top
+      } else if (dir === CONSTANTS.KEY_DIR.UP) {
+        match =
+          top < currentActiveNodeRect.top &&
+          left < currentActiveNodeRect.right &&
+          right > currentActiveNodeRect.left
+      } else if (dir === CONSTANTS.KEY_DIR.DOWN) {
+        match =
+          bottom > currentActiveNodeRect.bottom &&
+          left < currentActiveNodeRect.right &&
+          right > currentActiveNodeRect.left
+      }
+      if (match) {
+        checkNodeDis(rect, node)
+      }
+    })
+  }
+
+  //  3.区域算法
+  getFocusNodeByAreaAlgorithm({
+    currentActiveNode,
+    currentActiveNodeRect,
+    dir,
+    checkNodeDis
+  }) {
+    // 当前聚焦节点的中心点
+    let cX = (currentActiveNodeRect.right + currentActiveNodeRect.left) / 2
+    let cY = (currentActiveNodeRect.bottom + currentActiveNodeRect.top) / 2
+    bfsWalk(this.mindMap.renderer.root, node => {
+      if (node === currentActiveNode) return
+      let rect = this.getNodeRect(node)
+      let { left, top, right, bottom } = rect
+      // 遍历到的节点的中心点
+      let ccX = (right + left) / 2
+      let ccY = (bottom + top) / 2
+      // 节点的中心点坐标和当前聚焦节点的中心点坐标的差值
+      let offsetX = ccX - cX
+      let offsetY = ccY - cY
+      if (offsetX === 0 && offsetY === 0) return
+      let match = false
+      if (dir === CONSTANTS.KEY_DIR.LEFT) {
+        match = offsetX <= 0 && offsetX <= offsetY && offsetX <= -offsetY
+      } else if (dir === CONSTANTS.KEY_DIR.RIGHT) {
+        match = offsetX > 0 && offsetX >= -offsetY && offsetX >= offsetY
+      } else if (dir === CONSTANTS.KEY_DIR.UP) {
+        match = offsetY <= 0 && offsetY < offsetX && offsetY < -offsetX
+      } else if (dir === CONSTANTS.KEY_DIR.DOWN) {
+        match = offsetY > 0 && -offsetY < offsetX && offsetY > offsetX
+      }
+      if (match) {
+        checkNodeDis(rect, node)
+      }
+    })
+  }
+
+  //  获取节点的位置信息
+  getNodeRect(node) {
+    let { scaleX, scaleY, translateX, translateY } =
+      this.mindMap.draw.transform()
+    let { left, top, width, height } = node
+    return {
+      right: (left + width) * scaleX + translateX,
+      bottom: (top + height) * scaleY + translateY,
+      left: left * scaleX + translateX,
+      top: top * scaleY + translateY
+    }
+  }
+
+  //  获取两个节点的距离
+  getDistance(node1Rect, node2Rect) {
+    let center1 = this.getCenter(node1Rect)
+    let center2 = this.getCenter(node2Rect)
+    return Math.sqrt(
+      Math.pow(center1.x - center2.x, 2) + Math.pow(center1.y - center2.y, 2)
+    )
+  }
+
+  //  获取节点的中心点
+  getCenter({ left, right, top, bottom }) {
+    return {
+      x: (left + right) / 2,
+      y: (top + bottom) / 2
+    }
+  }
+}
+
+KeyboardNavigation.instanceName = 'keyboardNavigation'
+
+export default KeyboardNavigation
--- a/simple-mind-map/src/MiniMap.js
+++ b/simple-mind-map/src/MiniMap.js
@@ -1,175 +1,112 @@
 // 小地图类
 class MiniMap {
-  /**
-   * javascript comment
-   * @Author: 王林25
-   * @Date: 2022-10-10 14:00:45
-   * @Desc: 构造函数
-   */
+  //  构造函数
  constructor(opt) {
-    this.mindMap = opt.mindMap;
-    this.isMousedown = false;
+    this.mindMap = opt.mindMap
+    this.isMousedown = false
    this.mousedownPos = {
      x: 0,
-      y: 0,
-    };
+      y: 0
+    }
    this.startViewPos = {
      x: 0,
-      y: 0,
-    };
+      y: 0
+    }
  }

+  //  计算小地图的渲染数据
  /**
-   * javascript comment
-   * @Author: 王林25
-   * @Date: 2022-10-10 14:00:43
-   * @Desc:  获取小地图相关数据
-   */
-  getMiniMap() {
-    const svg = this.mindMap.svg;
-    const draw = this.mindMap.draw;
-    // 保存原始信息
-    const origWidth = svg.width();
-    const origHeight = svg.height();
-    const origTransform = draw.transform();
-    const elRect = this.mindMap.el.getBoundingClientRect();
-    // 去除放大缩小的变换效果
-    draw.scale(1 / origTransform.scaleX, 1 / origTransform.scaleY);
-    // 获取变换后的位置尺寸信息，其实是getBoundingClientRect方法的包装方法
-    const rect = draw.rbox();
-    // 将svg设置为实际内容的宽高
-    svg.size(rect.width, rect.height);
-    // 把实际内容变换
-    draw.translate(-rect.x + elRect.left, -rect.y + elRect.top);
-    // 克隆一份数据
-    const clone = svg.clone();
-    // 恢复原先的大小和变换信息
-    svg.size(origWidth, origHeight);
-    draw.transform(origTransform);
-
-    return {
-      svg: clone, // 思维导图图形的整体svg元素，包括：svg（画布容器）、g（实际的思维导图组）
-      svgHTML: clone.svg(), // svg字符串
-      rect: {
-        ...rect, // 思维导图图形未缩放时的位置尺寸等信息
-        ratio: rect.width / rect.height, // 思维导图图形的宽高比
-      },
-      origWidth, // 画布宽度
-      origHeight, // 画布高度
-      scaleX: origTransform.scaleX, // 思维导图图形的水平缩放值
-      scaleY: origTransform.scaleY, // 思维导图图形的垂直缩放值
-    };
-  }
-
-  /**
-   * javascript comment
-   * @Author: 王林25
-   * @Date: 2022-10-10 14:05:51
-   * @Desc: 计算小地图的渲染数据
   * boxWidth：小地图容器的宽度
   * boxHeight：小地图容器的高度
   */
  calculationMiniMap(boxWidth, boxHeight) {
    let { svgHTML, rect, origWidth, origHeight, scaleX, scaleY } =
-      this.getMiniMap();
+      this.mindMap.getSvgData()
    // 计算数据
-    let boxRatio = boxWidth / boxHeight;
-    let actWidth = 0;
-    let actHeight = 0;
+    let boxRatio = boxWidth / boxHeight
+    let actWidth = 0
+    let actHeight = 0
    if (boxRatio > rect.ratio) {
      // 高度以box为准，缩放宽度
-      actHeight = boxHeight;
-      actWidth = rect.ratio * actHeight;
+      actHeight = boxHeight
+      actWidth = rect.ratio * actHeight
    } else {
      // 宽度以box为准，缩放高度
-      actWidth = boxWidth;
-      actHeight = actWidth / rect.ratio;
+      actWidth = boxWidth
+      actHeight = actWidth / rect.ratio
    }
    // svg图形的缩放及位置
-    let miniMapBoxScale = actWidth / rect.width;
-    let miniMapBoxLeft = (boxWidth - actWidth) / 2;
-    let miniMapBoxTop = (boxHeight - actHeight) / 2;
+    let miniMapBoxScale = actWidth / rect.width
+    let miniMapBoxLeft = (boxWidth - actWidth) / 2
+    let miniMapBoxTop = (boxHeight - actHeight) / 2
    // 视口框大小及位置
-    let _rectX = rect.x - (rect.width * scaleX - rect.width) / 2;
-    let _rectX2 = rect.x2 + (rect.width * scaleX - rect.width) / 2;
-    let _rectY = rect.y - (rect.height * scaleY - rect.height) / 2;
-    let _rectY2 = rect.y2 + (rect.height * scaleY - rect.height) / 2;
-    let _rectWidth = rect.width * scaleX;
-    let _rectHeight = rect.height * scaleY;
+    let _rectX = rect.x - (rect.width * scaleX - rect.width) / 2
+    let _rectX2 = rect.x2 + (rect.width * scaleX - rect.width) / 2
+    let _rectY = rect.y - (rect.height * scaleY - rect.height) / 2
+    let _rectY2 = rect.y2 + (rect.height * scaleY - rect.height) / 2
+    let _rectWidth = rect.width * scaleX
+    let _rectHeight = rect.height * scaleY
    let viewBoxStyle = {
      left: 0,
      top: 0,
      right: 0,
-      bottom: 0,
-    };
+      bottom: 0
+    }
    viewBoxStyle.left =
-      Math.max(0, (-_rectX / _rectWidth) * actWidth) + miniMapBoxLeft + "px";
+      Math.max(0, (-_rectX / _rectWidth) * actWidth) + miniMapBoxLeft + 'px'
    viewBoxStyle.right =
      Math.max(0, ((_rectX2 - origWidth) / _rectWidth) * actWidth) +
      miniMapBoxLeft +
-      "px";
+      'px'

    viewBoxStyle.top =
-      Math.max(0, (-_rectY / _rectHeight) * actHeight) + miniMapBoxTop + "px";
+      Math.max(0, (-_rectY / _rectHeight) * actHeight) + miniMapBoxTop + 'px'
    viewBoxStyle.bottom =
      Math.max(0, ((_rectY2 - origHeight) / _rectHeight) * actHeight) +
      miniMapBoxTop +
-      "px";
+      'px'
    return {
      svgHTML, // 小地图html
      viewBoxStyle, // 视图框的位置信息
      miniMapBoxScale, // 视图框的缩放值
      miniMapBoxLeft, // 视图框的left值
-      miniMapBoxTop, // 视图框的top值
-    };
+      miniMapBoxTop // 视图框的top值
+    }
  }

-  /**
-   * javascript comment
-   * @Author: 王林25
-   * @Date: 2022-10-10 14:22:40
-   * @Desc: 小地图鼠标按下事件
-   */
+  //  小地图鼠标按下事件
  onMousedown(e) {
-    this.isMousedown = true;
+    this.isMousedown = true
    this.mousedownPos = {
      x: e.clientX,
-      y: e.clientY,
-    };
+      y: e.clientY
+    }
    // 保存视图当前的偏移量
-    let transformData = this.mindMap.view.getTransformData();
+    let transformData = this.mindMap.view.getTransformData()
    this.startViewPos = {
      x: transformData.state.x,
-      y: transformData.state.y,
-    };
+      y: transformData.state.y
+    }
  }

-  /**
-   * javascript comment
-   * @Author: 王林25
-   * @Date: 2022-10-10 14:22:55
-   * @Desc: 小地图鼠标移动事件
-   */
+  //  小地图鼠标移动事件
  onMousemove(e, sensitivityNum = 5) {
    if (!this.isMousedown) {
-      return;
+      return
    }
-    let ox = e.clientX - this.mousedownPos.x;
-    let oy = e.clientY - this.mousedownPos.y;
+    let ox = e.clientX - this.mousedownPos.x
+    let oy = e.clientY - this.mousedownPos.y
    // 在视图最初偏移量上累加更新量
-    this.mindMap.view.translateXTo(ox * sensitivityNum + this.startViewPos.x);
-    this.mindMap.view.translateYTo(oy * sensitivityNum + this.startViewPos.y);
+    this.mindMap.view.translateXTo(ox * sensitivityNum + this.startViewPos.x)
+    this.mindMap.view.translateYTo(oy * sensitivityNum + this.startViewPos.y)
  }

-  /**
-   * javascript comment
-   * @Author: 王林25
-   * @Date: 2022-10-10 14:23:01
-   * @Desc: 小地图鼠标松开事件
-   */
+  //  小地图鼠标松开事件
  onMouseup() {
-    this.isMousedown = false;
+    this.isMousedown = false
  }
 }

-export default MiniMap;
+MiniMap.instanceName = 'miniMap'
+
+export default MiniMap
--- a/simple-mind-map/src/Node.js
+++ b/simple-mind-map/src/Node.js
--- a/simple-mind-map/src/Render.js
+++ b/simple-mind-map/src/Render.js
--- a/simple-mind-map/src/RichText.js
+++ b/simple-mind-map/src/RichText.js
@@ -0,0 +1,461 @@
+import Quill from 'quill'
+import 'quill/dist/quill.snow.css'
+import './css/quill.css'
+import html2canvas from 'html2canvas'
+import { Image as SvgImage } from '@svgdotjs/svg.js'
+import { walk } from './utils'
+import { CONSTANTS } from './utils/constant'
+
+let extended = false
+
+// 扩展quill的字体列表
+let fontFamilyList = [
+  '宋体, SimSun, Songti SC',
+  '微软雅黑, Microsoft YaHei',
+  '楷体, 楷体_GB2312, SimKai, STKaiti',
+  '黑体, SimHei, Heiti SC',
+  '隶书, SimLi',
+  'andale mono',
+  'arial, helvetica, sans-serif',
+  'arial black, avant garde',
+  'comic sans ms',
+  'impact, chicago',
+  'times new roman',
+  'sans-serif',
+  'serif'
+]
+
+// 扩展quill的字号列表
+let fontSizeList = new Array(100).fill(0).map((_, index) => {
+  return index + 'px'
+})
+
+// 节点支持富文本编辑功能
+class RichText {
+  constructor({ mindMap, pluginOpt }) {
+    this.mindMap = mindMap
+    this.pluginOpt = pluginOpt
+    this.textEditNode = null
+    this.showTextEdit = false
+    this.quill = null
+    this.range = null
+    this.lastRange = null
+    this.node = null
+    this.initOpt()
+    this.extendQuill()
+  }
+
+  // 处理选项参数
+  initOpt() {
+    if (
+      this.pluginOpt.fontFamilyList &&
+      Array.isArray(this.pluginOpt.fontFamilyList)
+    ) {
+      fontFamilyList = this.pluginOpt.fontFamilyList
+    }
+    if (
+      this.pluginOpt.fontSizeList &&
+      Array.isArray(this.pluginOpt.fontSizeList)
+    ) {
+      fontSizeList = this.pluginOpt.fontSizeList
+    }
+  }
+
+  // 扩展quill编辑器
+  extendQuill() {
+    if (extended) {
+      return
+    }
+    extended = true
+
+    // 扩展quill的字体列表
+    const FontAttributor = Quill.import('attributors/class/font')
+    FontAttributor.whitelist = fontFamilyList
+    Quill.register(FontAttributor, true)
+
+    const FontStyle = Quill.import('attributors/style/font')
+    FontStyle.whitelist = fontFamilyList
+    Quill.register(FontStyle, true)
+
+    // 扩展quill的字号列表
+    const SizeAttributor = Quill.import('attributors/class/size')
+    SizeAttributor.whitelist = fontSizeList
+    Quill.register(SizeAttributor, true)
+
+    const SizeStyle = Quill.import('attributors/style/size')
+    SizeStyle.whitelist = fontSizeList
+    Quill.register(SizeStyle, true)
+  }
+
+  // 显示文本编辑控件
+  showEditText(node, rect) {
+    if (this.showTextEdit) {
+      return
+    }
+    this.node = node
+    if (!rect) rect = node._textData.node.node.getBoundingClientRect()
+    this.mindMap.emit('before_show_text_edit')
+    this.mindMap.renderer.textEdit.registerTmpShortcut()
+    if (!this.textEditNode) {
+      this.textEditNode = document.createElement('div')
+      this.textEditNode.style.cssText = `position:fixed;box-sizing: border-box;box-shadow: 0 0 20px rgba(0,0,0,.5);outline: none; word-break: break-all;padding: 3px 5px;margin-left: -5px;margin-top: -3px;`
+      document.body.appendChild(this.textEditNode)
+    }
+    // 原始宽高
+    let g = node._textData.node
+    let originWidth = g.attr('data-width')
+    let originHeight = g.attr('data-height')
+    // 使用节点的填充色，否则如果节点颜色是白色的话编辑时看不见
+    let bgColor = node.style.merge('fillColor')
+    this.textEditNode.style.backgroundColor = bgColor === 'transparent' ? '#fff' : bgColor
+    this.textEditNode.style.minWidth = originWidth + 'px'
+    this.textEditNode.style.minHeight = originHeight + 'px'
+    this.textEditNode.style.left =
+      rect.left + (rect.width - originWidth) / 2 + 'px'
+    this.textEditNode.style.top =
+      rect.top + (rect.height - originHeight) / 2 + 'px'
+    this.textEditNode.style.display = 'block'
+    this.textEditNode.style.maxWidth = this.mindMap.opt.textAutoWrapWidth + 'px'
+    this.textEditNode.style.transform = `scale(${rect.width / originWidth}, ${
+      rect.height / originHeight
+    })`
+    if (!node.nodeData.data.richText) {
+      // 还不是富文本的情况
+      let text = node.nodeData.data.text.split(/\n/gim).join('<br>')
+      let html = `<p>${text}</p>`
+      this.textEditNode.innerHTML = html
+    } else {
+      this.textEditNode.innerHTML = node.nodeData.data.text
+    }
+    this.initQuillEditor()
+    document.querySelector('.ql-editor').style.minHeight = originHeight + 'px'
+    this.showTextEdit = true
+    this.focus()
+    if (!node.nodeData.data.richText) {
+      // 如果是非富文本的情况，需要手动应用文本样式
+      this.setTextStyleIfNotRichText(node)
+    }
+  }
+
+  // 如果是非富文本的情况，需要手动应用文本样式
+  setTextStyleIfNotRichText(node) {
+    let style = {
+      font: node.style.merge('fontFamily'),
+      color: node.style.merge('color'),
+      italic: node.style.merge('fontStyle') === 'italic',
+      bold: node.style.merge('fontWeight') === 'bold',
+      size: node.style.merge('fontSize') + 'px',
+      underline: node.style.merge('textDecoration') === 'underline',
+      strike: node.style.merge('textDecoration') === 'line-through'
+    }
+    this.formatAllText(style)
+  }
+
+  // 隐藏文本编辑控件，即完成编辑
+  hideEditText() {
+    if (!this.showTextEdit) {
+      return
+    }
+    let html = this.quill.container.firstChild.innerHTML
+    // 去除最后的空行
+    html = html.replace(/<p><br><\/p>$/, '')
+    this.mindMap.renderer.activeNodeList.forEach(node => {
+      this.mindMap.execCommand('SET_NODE_TEXT', node, html, true)
+      if (node.isGeneralization) {
+        // 概要节点
+        node.generalizationBelongNode.updateGeneralization()
+      }
+      this.mindMap.render()
+    })
+    this.mindMap.emit(
+      'hide_text_edit',
+      this.textEditNode,
+      this.mindMap.renderer.activeNodeList
+    )
+    this.textEditNode.style.display = 'none'
+    this.showTextEdit = false
+    this.mindMap.emit('rich_text_selection_change', false)
+    this.node = null
+  }
+
+  // 初始化Quill富文本编辑器
+  initQuillEditor() {
+    this.quill = new Quill(this.textEditNode, {
+      modules: {
+        toolbar: false,
+        keyboard: {
+          bindings: {
+            enter: {
+              key: 13,
+              handler: function () {
+                // 覆盖默认的回车键换行
+              }
+            }
+          }
+        }
+      },
+      theme: 'snow'
+    })
+    this.quill.on('selection-change', range => {
+      this.lastRange = this.range
+      this.range = null
+      if (range) {
+        let bounds = this.quill.getBounds(range.index, range.length)
+        let rect = this.textEditNode.getBoundingClientRect()
+        let rectInfo = {
+          left: bounds.left + rect.left,
+          top: bounds.top + rect.top,
+          right: bounds.right + rect.left,
+          bottom: bounds.bottom + rect.top,
+          width: bounds.width
+        }
+        let formatInfo = this.quill.getFormat(range.index, range.length)
+        let hasRange = false
+        if (range.length == 0) {
+          hasRange = false
+        } else {
+          this.range = range
+          hasRange = true
+        }
+        this.mindMap.emit(
+          'rich_text_selection_change',
+          hasRange,
+          rectInfo,
+          formatInfo
+        )
+      }
+    })
+  }
+
+  // 选中全部
+  selectAll() {
+    this.quill.setSelection(0, this.quill.getLength())
+  }
+
+  // 聚焦
+  focus() {
+    let len = this.quill.getLength()
+    this.quill.setSelection(len, len)
+  }
+
+  // 格式化当前选中的文本
+  formatText(config = {}, clear = false) {
+    if (!this.range && !this.lastRange) return
+    this.syncFormatToNodeConfig(config, clear)
+    let rangeLost = !this.range
+    let range = rangeLost ? this.lastRange : this.range
+    clear ? this.quill.removeFormat(range.index, range.length) : this.quill.formatText(range.index, range.length, config)
+    if (rangeLost) {
+      this.quill.setSelection(this.lastRange.index, this.lastRange.length)
+    }
+  }
+
+  // 清除当前选中文本的样式
+  removeFormat() {
+    this.formatText({}, true)
+  }
+
+  // 格式化指定范围的文本
+  formatRangeText(range, config = {}) {
+    if (!range) return
+    this.syncFormatToNodeConfig(config)
+    this.quill.formatText(range.index, range.length, config)
+  }
+
+  // 格式化所有文本
+  formatAllText(config = {}) {
+    this.syncFormatToNodeConfig(config)
+    this.quill.formatText(0, this.quill.getLength(), config)
+  }
+
+  // 同步格式化到节点样式配置
+  syncFormatToNodeConfig(config, clear) {
+    if (!this.node) return
+    if (clear) {
+      // 清除文本样式
+      ['fontFamily', 'fontSize', 'fontWeight', 'fontStyle', 'textDecoration', 'color'].forEach((prop) => {
+        delete this.node.nodeData.data[prop]
+      })
+    } else {
+      let data = this.richTextStyleToNormalStyle(config)
+      this.mindMap.renderer.setNodeData(this.node, data)
+    }
+  }
+
+  // 将普通节点样式对象转换成富文本样式对象
+  normalStyleToRichTextStyle(style) {
+    let config = {}
+    Object.keys(style).forEach(prop => {
+      let value = style[prop]
+      switch (prop) {
+        case 'fontFamily':
+          config.font = value
+          break
+        case 'fontSize':
+          config.size = value + 'px'
+          break
+        case 'fontWeight':
+          config.bold = value === 'bold'
+          break
+        case 'fontStyle':
+          config.italic = value === 'italic'
+          break
+        case 'textDecoration':
+          config.underline = value === 'underline'
+          config.strike = value === 'line-through'
+          break
+        case 'color':
+          config.color = value
+          break
+        default:
+          break
+      }
+    })
+    return config
+  }
+
+  // 将富文本样式对象转换成普通节点样式对象
+  richTextStyleToNormalStyle(config) {
+    let data = {}
+    Object.keys(config).forEach(prop => {
+      let value = config[prop]
+      switch (prop) {
+        case 'font':
+          data.fontFamily = value
+          break
+        case 'size':
+          data.fontSize = parseFloat(value)
+          break
+        case 'bold':
+          data.fontWeight = value ? 'bold' : 'normal'
+          break
+        case 'italic':
+          data.fontStyle = value ? 'italic' : 'normal'
+          break
+        case 'underline':
+          data.textDecoration = value ? 'underline' : 'none'
+          break
+        case 'strike':
+          data.textDecoration = value ? 'line-through' : 'none'
+          break
+        case 'color':
+          data.color = value
+          break
+        default:
+          break
+      }
+    })
+    return data
+  }
+
+  // 将svg中嵌入的dom元素转换成图片
+  async _handleSvgDomElements(svg) {
+    svg = svg.clone()
+    let foreignObjectList = svg.find('foreignObject')
+    let task = foreignObjectList.map(async item => {
+      let clone = item.first().node.cloneNode(true)
+      let div = document.createElement('div')
+      div.style.cssText = `position: fixed; left: -999999px;`
+      div.appendChild(clone)
+      this.mindMap.el.appendChild(div)
+      let canvas = await html2canvas(clone, {
+        backgroundColor: null
+      })
+      this.mindMap.el.removeChild(div)
+      let imgNode = new SvgImage()
+        .load(canvas.toDataURL())
+        .size(canvas.width, canvas.height)
+      item.replace(imgNode)
+    })
+    await Promise.all(task)
+    return {
+      svg: svg,
+      svgHTML: svg.svg()
+    }
+  }
+
+  // 将svg中嵌入的dom元素转换成图片
+  handleSvgDomElements(svg) {
+    return new Promise((resolve, reject) => {
+      svg = svg.clone()
+      let foreignObjectList = svg.find('foreignObject')
+      let index = 0
+      let len = foreignObjectList.length
+      let transform = async () => {
+        this.mindMap.emit('transforming-dom-to-images', index, len)
+        try {
+          let item = foreignObjectList[index++]
+          let parent = item.parent()
+          let clone = item.first().node.cloneNode(true)
+          let div = document.createElement('div')
+          div.style.cssText = `position: fixed; left: -999999px;`
+          div.appendChild(clone)
+          this.mindMap.el.appendChild(div)
+          let canvas = await html2canvas(clone, {
+            backgroundColor: null
+          })
+          // 优先使用原始宽高，因为当设备的window.devicePixelRatio不为1时，html2canvas输出的图片会更大
+          let imgNodeWidth = parent.attr('data-width') || canvas.width
+          let imgNodeHeight = parent.attr('data-height') || canvas.height
+          this.mindMap.el.removeChild(div)
+          let imgNode = new SvgImage()
+            .load(canvas.toDataURL())
+            .size(imgNodeWidth, imgNodeHeight)
+            .x((parent ? parent.attr('data-offsetx') : 0) || 0)
+          item.replace(imgNode)
+          if (index <= len - 1) {
+            setTimeout(() => {
+              transform()
+            }, 0)
+          } else {
+            resolve({
+              svg: svg,
+              svgHTML: svg.svg()
+            })
+          }
+        } catch (error) {
+          reject(error)
+        }
+      }
+      if (len > 0) {
+        transform()
+      } else {
+        resolve(null)
+      }
+    })
+  }
+
+  // 将所有节点转换成非富文本节点
+  transformAllNodesToNormalNode() {
+    let div = document.createElement('div')
+    walk(
+      this.mindMap.renderer.renderTree,
+      null,
+      node => {
+        if (node.data.richText) {
+          node.data.richText = false
+          div.innerHTML = node.data.text
+          node.data.text = div.textContent
+          // delete node.data.uid
+        }
+      },
+      null,
+      true,
+      0,
+      0
+    )
+    // 清空历史数据，并且触发数据变化
+    this.mindMap.command.clearHistory()
+    this.mindMap.command.addHistory()
+    this.mindMap.render(null, CONSTANTS.TRANSFORM_TO_NORMAL_NODE)
+  }
+
+  // 插件被移除前做的事情
+  beforePluginRemove() {
+    this.transformAllNodesToNormalNode()
+  }
+}
+
+RichText.instanceName = 'richText'
+
+export default RichText
--- a/simple-mind-map/src/Select.js
+++ b/simple-mind-map/src/Select.js
@@ -1,191 +1,172 @@
 import { bfsWalk, throttle } from './utils'

-/** 
- * @Author: 王林 
- * @Date: 2021-07-10 22:34:51 
- * @Desc: 选择节点类 
- */
+//  选择节点类

 class Select {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-10 22:35:16 
-     * @Desc: 构造函数 
-     */
-    constructor({ mindMap }) {
-        this.mindMap = mindMap
-        this.rect = null
-        this.isMousedown = false
-        this.mouseDownX = 0
-        this.mouseDownY = 0
-        this.mouseMoveX = 0
-        this.mouseMoveY = 0
-        this.bindEvent()
-    }
+  //  构造函数
+  constructor({ mindMap }) {
+    this.mindMap = mindMap
+    this.rect = null
+    this.isMousedown = false
+    this.mouseDownX = 0
+    this.mouseDownY = 0
+    this.mouseMoveX = 0
+    this.mouseMoveY = 0
+    this.bindEvent()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-10 22:36:36 
-     * @Desc: 绑定事件 
-     */
-    bindEvent() {
-        this.checkInNodes = throttle(this.checkInNodes, 500, this)
-        this.mindMap.on('mousedown', (e) => {
-            if (this.mindMap.opt.readonly) {
-                return
-            }
-            if (!e.ctrlKey && e.which !== 3) {
-                return
-            }
-            this.isMousedown = true
-            let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
-            this.mouseDownX = x
-            this.mouseDownY = y
-            this.createRect(x, y)
+  //  绑定事件
+  bindEvent() {
+    this.checkInNodes = throttle(this.checkInNodes, 500, this)
+    this.mindMap.on('mousedown', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!e.ctrlKey && e.which !== 3) {
+        return
+      }
+      this.isMousedown = true
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.mouseDownX = x
+      this.mouseDownY = y
+      this.createRect(x, y)
+    })
+    this.mindMap.on('mousemove', e => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!this.isMousedown) {
+        return
+      }
+      let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
+      this.mouseMoveX = x
+      this.mouseMoveY = y
+      if (
+        Math.abs(x - this.mouseDownX) <= 10 &&
+        Math.abs(y - this.mouseDownY) <= 10
+      ) {
+        return
+      }
+      clearTimeout(this.autoMoveTimer)
+      this.onMove(x, y)
+    })
+    this.mindMap.on('mouseup', () => {
+      if (this.mindMap.opt.readonly) {
+        return
+      }
+      if (!this.isMousedown) {
+        return
+      }
+      this.mindMap.emit(
+        'node_active',
+        null,
+        this.mindMap.renderer.activeNodeList
+      )
+      clearTimeout(this.autoMoveTimer)
+      this.isMousedown = false
+      if (this.rect) this.rect.remove()
+      this.rect = null
+    })
+  }
+
+  //  鼠标移动事件
+  onMove(x, y) {
+    // 绘制矩形
+    this.rect.plot([
+      [this.mouseDownX, this.mouseDownY],
+      [this.mouseMoveX, this.mouseDownY],
+      [this.mouseMoveX, this.mouseMoveY],
+      [this.mouseDownX, this.mouseMoveY]
+    ])
+    this.checkInNodes()
+    // 检测边缘移动
+    let step = this.mindMap.opt.selectTranslateStep
+    let limit = this.mindMap.opt.selectTranslateLimit
+    let count = 0
+    // 左边缘
+    if (x <= this.mindMap.elRect.left + limit) {
+      this.mouseDownX += step
+      this.mindMap.view.translateX(step)
+      count++
+    }
+    // 右边缘
+    if (x >= this.mindMap.elRect.right - limit) {
+      this.mouseDownX -= step
+      this.mindMap.view.translateX(-step)
+      count++
+    }
+    // 上边缘
+    if (y <= this.mindMap.elRect.top + limit) {
+      this.mouseDownY += step
+      this.mindMap.view.translateY(step)
+      count++
+    }
+    // 下边缘
+    if (y >= this.mindMap.elRect.bottom - limit) {
+      this.mouseDownY -= step
+      this.mindMap.view.translateY(-step)
+      count++
+    }
+    if (count > 0) {
+      this.startAutoMove(x, y)
+    }
+  }
+
+  //  开启自动移动
+  startAutoMove(x, y) {
+    this.autoMoveTimer = setTimeout(() => {
+      this.onMove(x, y)
+    }, 20)
+  }
+
+  //  创建矩形
+  createRect(x, y) {
+    this.rect = this.mindMap.svg
+      .polygon()
+      .stroke({
+        color: '#0984e3'
+      })
+      .fill({
+        color: 'rgba(9,132,227,0.3)'
+      })
+      .plot([[x, y]])
+  }
+
+  //  检测在选区里的节点
+  checkInNodes() {
+    let { scaleX, scaleY, translateX, translateY } =
+      this.mindMap.draw.transform()
+    let minx = Math.min(this.mouseDownX, this.mouseMoveX)
+    let miny = Math.min(this.mouseDownY, this.mouseMoveY)
+    let maxx = Math.max(this.mouseDownX, this.mouseMoveX)
+    let maxy = Math.max(this.mouseDownY, this.mouseMoveY)
+    bfsWalk(this.mindMap.renderer.root, node => {
+      let { left, top, width, height } = node
+      let right = (left + width) * scaleX + translateX
+      let bottom = (top + height) * scaleY + translateY
+      left = left * scaleX + translateX
+      top = top * scaleY + translateY
+      if (left >= minx && right <= maxx && top >= miny && bottom <= maxy) {
+        this.mindMap.batchExecution.push('activeNode' + node.uid, () => {
+          if (node.nodeData.data.isActive) {
+            return
+          }
+          this.mindMap.renderer.setNodeActive(node, true)
+          this.mindMap.renderer.addActiveNode(node)
        })
-        this.mindMap.on('mousemove', (e) => {
-            if (this.mindMap.opt.readonly) {
-                return
-            }
-            if (!this.isMousedown) {
-                return
-            }
-            let { x, y } = this.mindMap.toPos(e.clientX, e.clientY)
-            this.mouseMoveX = x
-            this.mouseMoveY = y
-            if (Math.abs(x - this.mouseDownX) <= 10 && Math.abs(y - this.mouseDownY) <= 10) {
-                return
-            }
-            clearTimeout(this.autoMoveTimer)
-            this.onMove(x, y)
+      } else if (node.nodeData.data.isActive) {
+        this.mindMap.batchExecution.push('activeNode' + node.uid, () => {
+          if (!node.nodeData.data.isActive) {
+            return
+          }
+          this.mindMap.renderer.setNodeActive(node, false)
+          this.mindMap.renderer.removeActiveNode(node)
        })
-        this.mindMap.on('mouseup', (e) => {
-            if (this.mindMap.opt.readonly) {
-                return
-            }
-            if (!this.isMousedown) {
-                return;
-            }
-            this.mindMap.emit('node_active', null, this.mindMap.renderer.activeNodeList)
-            clearTimeout(this.autoMoveTimer)
-            this.isMousedown = false
-            if (this.rect) this.rect.remove()
-            this.rect = null
-        })
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-13 07:55:49 
-     * @Desc: 鼠标移动事件
-     */
-    onMove (x, y) {
-        // 绘制矩形
-        this.rect.plot([
-            [this.mouseDownX, this.mouseDownY],
-            [this.mouseMoveX, this.mouseDownY],
-            [this.mouseMoveX, this.mouseMoveY],
-            [this.mouseDownX, this.mouseMoveY]
-        ])
-        this.checkInNodes()
-        // 检测边缘移动
-        let step = this.mindMap.opt.selectTranslateStep
-        let limit = this.mindMap.opt.selectTranslateLimit
-        let count = 0
-        // 左边缘
-        if (x <= this.mindMap.elRect.left + limit) {
-            this.mouseDownX += step
-            this.mindMap.view.translateX(step)
-            count++
-        }
-        // 右边缘
-        if (x >= this.mindMap.elRect.right - limit) {
-            this.mouseDownX -= step
-            this.mindMap.view.translateX(-step)
-            count++
-        }
-        // 上边缘
-        if (y <= this.mindMap.elRect.top + limit) {
-            this.mouseDownY += step
-            this.mindMap.view.translateY(step)
-            count++
-        }
-        // 下边缘
-        if (y >= this.mindMap.elRect.bottom - limit) {
-            this.mouseDownY -= step
-            this.mindMap.view.translateY(-step)
-            count++
-        }
-        if (count > 0) {
-            this.startAutoMove(x, y)
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-22 08:02:23 
-     * @Desc: 开启自动移动 
-     */
-    startAutoMove(x, y) {
-        this.autoMoveTimer = setTimeout(() => {
-            this.onMove(x, y)
-        }, 20);
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 10:19:37 
-     * @Desc: 创建矩形 
-     */
-    createRect(x, y) {
-        this.rect = this.mindMap.svg.polygon().stroke({
-            color: '#0984e3'
-        }).fill({
-            color: 'rgba(9,132,227,0.3)'
-        }).plot([[x, y]])
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 10:20:43 
-     * @Desc: 检测在选区里的节点 
-     */
-    checkInNodes() {
-        let { scaleX, scaleY, translateX, translateY } = this.mindMap.draw.transform()
-        let minx = Math.min(this.mouseDownX, this.mouseMoveX)
-        let miny = Math.min(this.mouseDownY, this.mouseMoveY)
-        let maxx = Math.max(this.mouseDownX, this.mouseMoveX)
-        let maxy = Math.max(this.mouseDownY, this.mouseMoveY)
-        bfsWalk(this.mindMap.renderer.root, (node) => {
-            let { left, top, width, height } = node
-            let right = (left + width) * scaleX + translateX
-            let bottom = (top + height) * scaleY + translateY
-            left = left * scaleX + translateX
-            top = top * scaleY + translateY
-            if (
-                left >= minx &&
-                right <= maxx &&
-                top >= miny &&
-                bottom <= maxy
-            ) {
-                this.mindMap.batchExecution.push('activeNode' + node.uid, () => {
-                    if (node.nodeData.data.isActive) {
-                        return ;
-                    }
-                    this.mindMap.renderer.setNodeActive(node, true)
-                    this.mindMap.renderer.addActiveNode(node)
-                })
-            } else if (node.nodeData.data.isActive) {
-                this.mindMap.batchExecution.push('activeNode' + node.uid, () => {
-                    if (!node.nodeData.data.isActive) {
-                        return ;
-                    }
-                    this.mindMap.renderer.setNodeActive(node, false)
-                    this.mindMap.renderer.removeActiveNode(node)
-                })
-            }
-        })
-    }
+      }
+    })
+  }
 }

-export default Select
+Select.instanceName = 'select'
+
+export default Select
--- a/simple-mind-map/src/Shape.js
+++ b/simple-mind-map/src/Shape.js
@@ -1,265 +1,229 @@
-/** 
- * @Author: 王林 
- * @Date: 2022-08-22 21:32:50 
- * @Desc: 节点形状类 
- */
- export default class Shape {
-    constructor(node) {
-        this.node = node
-    }
+import { Rect, Polygon, Path } from '@svgdotjs/svg.js'
+import { CONSTANTS } from './utils/constant'

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-08-17 22:32:32 
-     * @Desc: 形状需要的padding 
-     */
-    getShapePadding(width, height, paddingX, paddingY) {
-        const shape = this.node.getShape()
-        const defaultPaddingX = 15
-        const defaultPaddingY = 5
-        const actWidth = width + paddingX * 2
-        const actHeight = height + paddingY * 2
-        const actOffset = Math.abs(actWidth - actHeight)
-        switch (shape) {
-            case 'roundedRectangle':
-                return {
-                    paddingX: height > width ? (height - width) / 2 : 0,
-                    paddingY: 0
-                }  
-            case 'diamond':
-                return {
-                    paddingX: width / 2,
-                    paddingY: height / 2
-                }
-            case 'parallelogram':
-                return {
-                    paddingX: paddingX <= 0 ? defaultPaddingX : 0,
-                    paddingY: 0
-                }
-            case 'outerTriangularRectangle':
-                return {
-                    paddingX: paddingX <= 0 ? defaultPaddingX : 0,
-                    paddingY: 0
-                }
-            case 'innerTriangularRectangle':
-                return {
-                    paddingX: paddingX <= 0 ? defaultPaddingX : 0,
-                    paddingY: 0
-                }
-            case 'ellipse':
-                return {
-                    paddingX: paddingX <= 0 ? defaultPaddingX : 0,
-                    paddingY: paddingY <= 0 ? defaultPaddingY : 0
-                }
-            case 'circle':
-                return {
-                    paddingX: actHeight > actWidth ? actOffset / 2 : 0,
-                    paddingY: actHeight < actWidth ? actOffset / 2 : 0,
-                }
-            default:
-                return {
-                    paddingX: 0,
-                    paddingY: 0
-                }
+//  节点形状类
+export default class Shape {
+  constructor(node) {
+    this.node = node
+  }
+
+  //  形状需要的padding
+  getShapePadding(width, height, paddingX, paddingY) {
+    const shape = this.node.getShape()
+    const defaultPaddingX = 15
+    const defaultPaddingY = 5
+    const actWidth = width + paddingX * 2
+    const actHeight = height + paddingY * 2
+    const actOffset = Math.abs(actWidth - actHeight)
+    switch (shape) {
+      case CONSTANTS.SHAPE.ROUNDED_RECTANGLE:
+        return {
+          paddingX: height > width ? (height - width) / 2 : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.DIAMOND:
+        return {
+          paddingX: width / 2,
+          paddingY: height / 2
+        }
+      case CONSTANTS.SHAPE.PARALLELOGRAM:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.OUTER_TRIANGULAR_RECTANGLE:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.INNER_TRIANGULAR_RECTANGLE:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: 0
+        }
+      case CONSTANTS.SHAPE.ELLIPSE:
+        return {
+          paddingX: paddingX <= 0 ? defaultPaddingX : 0,
+          paddingY: paddingY <= 0 ? defaultPaddingY : 0
+        }
+      case CONSTANTS.SHAPE.CIRCLE:
+        return {
+          paddingX: actHeight > actWidth ? actOffset / 2 : 0,
+          paddingY: actHeight < actWidth ? actOffset / 2 : 0
+        }
+      default:
+        return {
+          paddingX: 0,
+          paddingY: 0
        }
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-08-17 22:22:53 
-     * @Desc: 创建形状节点 
-     */
-    createShape() {
-        const shape = this.node.getShape()
-        let { width, height } = this.node
-        let node = null
-        // 矩形
-        if (shape === 'rectangle') {
-            node = this.node.group.rect(width, height)
-        } else if (shape === 'diamond') {
-            // 菱形
-            node = this.createDiamond()
-        } else if (shape === 'parallelogram') {
-            // 平行四边形
-            node = this.createParallelogram()
-        } else if (shape === 'roundedRectangle') {
-            // 圆角矩形
-            node = this.createRoundedRectangle()
-        } else if (shape === 'octagonalRectangle') {
-            // 八角矩形
-            node = this.createOctagonalRectangle()
-        } else if (shape === 'outerTriangularRectangle') {
-            // 外三角矩形
-            node = this.createOuterTriangularRectangle()
-        } else if (shape === 'innerTriangularRectangle') {
-            // 内三角矩形
-            node = this.createInnerTriangularRectangle()
-        } else if (shape === 'ellipse') {
-            // 椭圆
-            node = this.createEllipse()
-        } else if (shape === 'circle') {
-            // 圆
-            node = this.createCircle()
-        }
-        return node
+  //  创建形状节点
+  createShape() {
+    const shape = this.node.getShape()
+    let { width, height } = this.node
+    let node = null
+    // 矩形
+    if (shape === CONSTANTS.SHAPE.RECTANGLE) {
+      node = new Rect().size(width, height)
+    } else if (shape === CONSTANTS.SHAPE.DIAMOND) {
+      // 菱形
+      node = this.createDiamond()
+    } else if (shape === CONSTANTS.SHAPE.PARALLELOGRAM) {
+      // 平行四边形
+      node = this.createParallelogram()
+    } else if (shape === CONSTANTS.SHAPE.ROUNDED_RECTANGLE) {
+      // 圆角矩形
+      node = this.createRoundedRectangle()
+    } else if (shape === CONSTANTS.SHAPE.OCTAGONAL_RECTANGLE) {
+      // 八角矩形
+      node = this.createOctagonalRectangle()
+    } else if (shape === CONSTANTS.SHAPE.OUTER_TRIANGULAR_RECTANGLE) {
+      // 外三角矩形
+      node = this.createOuterTriangularRectangle()
+    } else if (shape === CONSTANTS.SHAPE.INNER_TRIANGULAR_RECTANGLE) {
+      // 内三角矩形
+      node = this.createInnerTriangularRectangle()
+    } else if (shape === CONSTANTS.SHAPE.ELLIPSE) {
+      // 椭圆
+      node = this.createEllipse()
+    } else if (shape === CONSTANTS.SHAPE.CIRCLE) {
+      // 圆
+      node = this.createCircle()
    }
+    return node
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-09-04 09:08:54 
-     * @Desc: 创建菱形 
-     */
-    createDiamond() {
-        let { width, height } = this.node
-        let halfWidth = width / 2
-        let halfHeight = height / 2
-        let topX = halfWidth
-        let topY = 0
-        let rightX = width
-        let rightY = halfHeight
-        let bottomX = halfWidth
-        let bottomY = height
-        let leftX = 0
-        let leftY = halfHeight
-        return this.node.group.polygon(`
-            ${topX}, ${topY}
-            ${rightX}, ${rightY}
-            ${bottomX}, ${bottomY}
-            ${leftX}, ${leftY}
-        `)
-    }
+  //  创建菱形
+  createDiamond() {
+    let { width, height } = this.node
+    let halfWidth = width / 2
+    let halfHeight = height / 2
+    let topX = halfWidth
+    let topY = 0
+    let rightX = width
+    let rightY = halfHeight
+    let bottomX = halfWidth
+    let bottomY = height
+    let leftX = 0
+    let leftY = halfHeight
+    return new Polygon().plot([
+      [topX, topY],
+      [rightX, rightY],
+      [bottomX, bottomY],
+      [leftX, leftY]
+    ])
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-09-03 16:14:12 
-     * @Desc: 创建平行四边形 
-     */
-    createParallelogram() {
-        let { paddingX } = this.node.getPaddingVale()
-        paddingX = paddingX || this.node.shapePadding.paddingX
-        let { width, height } = this.node
-        return this.node.group.polygon(`
-            ${paddingX}, ${0}
-            ${width}, ${0}
-            ${width - paddingX}, ${height}
-            ${0}, ${height}
-        `)
-    }
+  //  创建平行四边形
+  createParallelogram() {
+    let { paddingX } = this.node.getPaddingVale()
+    paddingX = paddingX || this.node.shapePadding.paddingX
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [paddingX, 0],
+      [width, 0],
+      [width - paddingX, height],
+      [0, height]
+    ])
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-09-03 16:50:23 
-     * @Desc: 创建圆角矩形 
-     */
-    createRoundedRectangle() {
-        let { width, height } = this.node
-        let halfHeight = height / 2
-        return this.node.group.path(`
-            M${halfHeight},0
-            L${width - halfHeight},0
-            A${height / 2},${height / 2} 0 0,1 ${width - halfHeight},${height} 
-            L${halfHeight},${height}
-            A${height / 2},${height / 2} 0 0,1 ${halfHeight},${0}
-        `)
-    }
+  //  创建圆角矩形
+  createRoundedRectangle() {
+    let { width, height } = this.node
+    let halfHeight = height / 2
+    return new Path().plot(`
+      M${halfHeight},0
+      L${width - halfHeight},0
+      A${height / 2},${height / 2} 0 0,1 ${width - halfHeight},${height} 
+      L${halfHeight},${height}
+      A${height / 2},${height / 2} 0 0,1 ${halfHeight},${0}
+    `)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 16:14:08 
-     * @Desc: 创建八角矩形 
-     */
-    createOctagonalRectangle() {
-        let w = 5
-        let { width, height } = this.node
-        return this.node.group.polygon(`
-            ${0}, ${w}
-            ${w}, ${0}
-            ${width - w}, ${0}
-            ${width}, ${w}
-            ${width}, ${height - w}
-            ${width - w}, ${height}
-            ${w}, ${height}
-            ${0}, ${height - w}
-        `)
-    }
+  //  创建八角矩形
+  createOctagonalRectangle() {
+    let w = 5
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [0, w],
+      [w, 0],
+      [width - w, 0],
+      [width, w],
+      [width, height - w],
+      [width - w, height],
+      [w, height],
+      [0, height - w]
+    ])
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 20:55:50 
-     * @Desc: 创建外三角矩形 
-     */
-    createOuterTriangularRectangle() {
-        let { paddingX } = this.node.getPaddingVale()
-        paddingX = paddingX || this.node.shapePadding.paddingX
-        let { width, height } = this.node
-        return this.node.group.polygon(`
-            ${paddingX}, ${0}
-            ${width - paddingX}, ${0}
-            ${width}, ${height / 2}
-            ${width - paddingX}, ${height}
-            ${paddingX}, ${height}
-            ${0}, ${height / 2}
-        `)
-    }
+  //  创建外三角矩形
+  createOuterTriangularRectangle() {
+    let { paddingX } = this.node.getPaddingVale()
+    paddingX = paddingX || this.node.shapePadding.paddingX
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [paddingX, 0],
+      [width - paddingX, 0],
+      [width, height / 2],
+      [width - paddingX, height],
+      [paddingX, height],
+      [0, height / 2]
+    ])
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 20:59:37 
-     * @Desc: 创建内三角矩形 
-     */
-    createInnerTriangularRectangle() {
-        let { paddingX } = this.node.getPaddingVale()
-        paddingX = paddingX || this.node.shapePadding.paddingX
-        let { width, height } = this.node
-        return this.node.group.polygon(`
-            ${0}, ${0}
-            ${width}, ${0}
-            ${width - paddingX / 2}, ${height / 2}
-            ${width}, ${height}
-            ${0}, ${height}
-            ${paddingX / 2}, ${height / 2}
-        `)
-    }
+  //  创建内三角矩形
+  createInnerTriangularRectangle() {
+    let { paddingX } = this.node.getPaddingVale()
+    paddingX = paddingX || this.node.shapePadding.paddingX
+    let { width, height } = this.node
+    return new Polygon().plot([
+      [0, 0],
+      [width, 0],
+      [width - paddingX / 2, height / 2],
+      [width, height],
+      [0, height],
+      [paddingX / 2, height / 2]
+    ])
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 21:06:31 
-     * @Desc: 创建椭圆 
-     */
-    createEllipse() {
-        let { width, height } = this.node
-        let halfWidth = width / 2
-        let halfHeight = height / 2
-        return this.node.group.path(`
-            M${halfWidth},0
-            A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${height} 
-            M${halfWidth},${height} 
-            A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${0} 
-        `)
-    }
+  //  创建椭圆
+  createEllipse() {
+    let { width, height } = this.node
+    let halfWidth = width / 2
+    let halfHeight = height / 2
+    return new Path().plot(`
+      M${halfWidth},0
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${height} 
+      M${halfWidth},${height} 
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${0} 
+    `)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 21:14:04 
-     * @Desc: 创建圆 
-     */
-    createCircle() {
-        let { width, height } = this.node
-        let halfWidth = width / 2
-        let halfHeight = height / 2
-        return this.node.group.path(`
-            M${halfWidth},0
-            A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${height} 
-            M${halfWidth},${height} 
-            A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${0} 
-        `)
-    }
+  //  创建圆
+  createCircle() {
+    let { width, height } = this.node
+    let halfWidth = width / 2
+    let halfHeight = height / 2
+    return new Path().plot(`
+      M${halfWidth},0
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${height} 
+      M${halfWidth},${height} 
+      A${halfWidth},${halfHeight} 0 0,1 ${halfWidth},${0} 
+    `)
+  }
 }

 // 形状列表
-export const shapeList = ['rectangle', 'diamond', 'parallelogram', 'roundedRectangle', 'octagonalRectangle', 'outerTriangularRectangle', 'innerTriangularRectangle', 'ellipse', 'circle']
+export const shapeList = [
+  CONSTANTS.SHAPE.RECTANGLE,
+  CONSTANTS.SHAPE.DIAMOND,
+  CONSTANTS.SHAPE.PARALLELOGRAM,
+  CONSTANTS.SHAPE.ROUNDED_RECTANGLE,
+  CONSTANTS.SHAPE.OCTAGONAL_RECTANGLE,
+  CONSTANTS.SHAPE.OUTER_TRIANGULAR_RECTANGLE,
+  CONSTANTS.SHAPE.INNER_TRIANGULAR_RECTANGLE,
+  CONSTANTS.SHAPE.ELLIPSE,
+  CONSTANTS.SHAPE.CIRCLE
+]
--- a/simple-mind-map/src/Style.js
+++ b/simple-mind-map/src/Style.js
@@ -1,210 +1,183 @@
-import { tagColorList } from './utils/constant';
+import { tagColorList } from './utils/constant'
 const rootProp = ['paddingX', 'paddingY']

-/** 
- * @Author: 王林 
- * @Date: 2021-04-11 10:09:08 
- * @Desc: 样式类 
- */
+//  样式类
 class Style {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 16:01:53 
-     * @Desc:  设置背景样式
-     */
-    static setBackgroundStyle(el, themeConfig) {
-        let { backgroundColor, backgroundImage, backgroundRepeat } = themeConfig
-        el.style.backgroundColor = backgroundColor
-        if (backgroundImage) {
-            el.style.backgroundImage = `url(${backgroundImage})`
-            el.style.backgroundRepeat = backgroundRepeat
-        }
+  //   设置背景样式
+  static setBackgroundStyle(el, themeConfig) {
+    let { backgroundColor, backgroundImage, backgroundRepeat, backgroundPosition, backgroundSize } = themeConfig
+    el.style.backgroundColor = backgroundColor
+    if (backgroundImage) {
+      el.style.backgroundImage = `url(${backgroundImage})`
+      el.style.backgroundRepeat = backgroundRepeat
+      el.style.backgroundPosition = backgroundPosition
+      el.style.backgroundSize = backgroundSize
+    } else {
+      el.style.backgroundImage = 'none'
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 10:10:11 
-     * @Desc: 构造函数 
-     */
-    constructor(ctx, themeConfig) {
-        this.ctx = ctx
-        this.themeConfig = themeConfig
-    }
+  //  构造函数
+  constructor(ctx) {
+    this.ctx = ctx
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-12 07:40:14 
-     * @Desc: 更新主题配置 
-     */
-    updateThemeConfig(themeConfig) {
-        this.themeConfig = themeConfig
+  //  合并样式
+  merge(prop, root, isActive) {
+    let themeConfig = this.ctx.mindMap.themeConfig
+    // 三级及以下节点
+    let defaultConfig = themeConfig.node
+    if (root || rootProp.includes(prop)) {
+      // 直接使用最外层样式
+      defaultConfig = themeConfig
+    } else if (this.ctx.isGeneralization) {
+      // 概要节点
+      defaultConfig = themeConfig.generalization
+    } else if (this.ctx.layerIndex === 0) {
+      // 根节点
+      defaultConfig = themeConfig.root
+    } else if (this.ctx.layerIndex === 1) {
+      // 二级节点
+      defaultConfig = themeConfig.second
    }
+    // 激活状态
+    if (isActive !== undefined ? isActive : this.ctx.nodeData.data.isActive) {
+      if (
+        this.ctx.nodeData.data.activeStyle &&
+        this.ctx.nodeData.data.activeStyle[prop] !== undefined
+      ) {
+        return this.ctx.nodeData.data.activeStyle[prop]
+      } else if (defaultConfig.active && defaultConfig.active[prop]) {
+        return defaultConfig.active[prop]
+      }
+    }
+    // 优先使用节点本身的样式
+    return this.getSelfStyle(prop) !== undefined
+      ? this.getSelfStyle(prop)
+      : defaultConfig[prop]
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 12:02:55 
-     * @Desc: 合并样式 
-     */
-    merge(prop, root, isActive) {
-        // 三级及以下节点
-        let defaultConfig = this.themeConfig.node
-        if (root || rootProp.includes(prop)) {// 直接使用最外层样式
-            defaultConfig = this.themeConfig
-        } else if (this.ctx.isGeneralization) {// 概要节点
-            defaultConfig = this.themeConfig.generalization
-        } else if (this.ctx.layerIndex === 0) {// 根节点
-            defaultConfig = this.themeConfig.root
-        } else if (this.ctx.layerIndex === 1) {// 二级节点
-            defaultConfig = this.themeConfig.second
-        }
-        // 激活状态
-        if (isActive !== undefined ? isActive : this.ctx.nodeData.data.isActive) {
-            if (this.ctx.nodeData.data.activeStyle && this.ctx.nodeData.data.activeStyle[prop] !== undefined) {
-                return this.ctx.nodeData.data.activeStyle[prop];
-            } else if (defaultConfig.active && defaultConfig.active[prop]) {
-                return defaultConfig.active[prop]
-            }
-        }
-        // 优先使用节点本身的样式
-        return this.getSelfStyle(prop) !== undefined ? this.getSelfStyle(prop) : defaultConfig[prop]
-    }
+  //  获取某个样式值
+  getStyle(prop, root, isActive) {
+    return this.merge(prop, root, isActive)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 21:55:57 
-     * @Desc: 获取某个样式值 
-     */
-    getStyle(prop, root, isActive) {
-        return this.merge(prop, root, isActive)
-    }
+  //  获取自身自定义样式
+  getSelfStyle(prop) {
+    return this.ctx.nodeData.data[prop]
+  }

-    /** 
-     * javascript comment 
-     * @Author: flydreame 
-     * @Date: 2022-09-17 12:09:39 
-     * @Desc: 获取自身自定义样式 
-     */
-    getSelfStyle(prop) {
-        return this.ctx.nodeData.data[prop]
-    }
+  //  矩形
+  rect(node) {
+    this.shape(node)
+    node.radius(this.merge('borderRadius'))
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 10:12:56 
-     * @Desc: 矩形 
-     */
-    rect(node) {
-        this.shape(node)
-        node.radius(this.merge('borderRadius'))
-    }
+  //   矩形外的其他形状
+  shape(node) {
+    node.fill({
+      color: this.merge('fillColor')
+    })
+    // 节点使用横线样式，不需要渲染非激活状态的边框样式
+    // if (
+    //   !this.ctx.isRoot &&
+    //   !this.ctx.isGeneralization &&
+    //   this.ctx.mindMap.themeConfig.nodeUseLineStyle &&
+    //   !this.ctx.nodeData.data.isActive
+    // ) {
+    //   return
+    // }
+    node.stroke({
+      color: this.merge('borderColor'),
+      width: this.merge('borderWidth'),
+      dasharray: this.merge('borderDasharray')
+    })
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林 
-     * @Date: 2022-09-12 15:04:28 
-     * @Desc:  矩形外的其他形状 
-     */
-    shape(node) {
-        node.fill({
-            color: this.merge('fillColor')
-        }).stroke({
-            color: this.merge('borderColor'),
-            width: this.merge('borderWidth'),
-            dasharray: this.merge('borderDasharray')
-        })
-    }
+  //  文字
+  text(node) {
+    node
+      .fill({
+        color: this.merge('color')
+      })
+      .css({
+        'font-family': this.merge('fontFamily'),
+        'font-size': this.merge('fontSize'),
+        'font-weight': this.merge('fontWeight'),
+        'font-style': this.merge('fontStyle'),
+        'text-decoration': this.merge('textDecoration')
+      })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 12:07:59 
-     * @Desc: 文字 
-     */
-    text(node) {
-        node.fill({
-            color: this.merge('color')
-        }).css({
-            'font-family': this.merge('fontFamily'),
-            'font-size': this.merge('fontSize'),
-            'font-weight': this.merge('fontWeight'),
-            'font-style': this.merge('fontStyle'),
-            'text-decoration': this.merge('textDecoration')
-        })
+  // 获取文本样式
+  getTextFontStyle() {
+    return { 
+      italic: this.merge('fontStyle') === 'italic', 
+      bold: this.merge('fontWeight'), 
+      fontSize: this.merge('fontSize'), 
+      fontFamily: this.merge('fontFamily')
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-13 08:14:34 
-     * @Desc: html文字节点 
-     */
-    domText(node, fontSizeScale = 1) {
-        node.style.fontFamily = this.merge('fontFamily')
-        node.style.fontSize = this.merge('fontSize') * fontSizeScale + 'px'
-        node.style.fontWeight = this.merge('fontWeight') || 'normal'
-    }
+  //  html文字节点
+  domText(node, fontSizeScale = 1, textLines) {
+    node.style.fontFamily = this.merge('fontFamily')
+    node.style.fontSize = this.merge('fontSize') * fontSizeScale + 'px'
+    node.style.fontWeight = this.merge('fontWeight') || 'normal'
+    node.style.lineHeight = textLines === 1 ? 'normal' : this.merge('lineHeight')
+    node.style.fontStyle = this.merge('fontStyle')
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-20 20:02:18 
-     * @Desc: 标签文字 
-     */
-    tagText(node, index) {
-        node.fill({
-            color: tagColorList[index].color
-        }).css({
-            'font-size': '12px'
-        })
-    }
+  //  标签文字
+  tagText(node, index) {
+    node
+      .fill({
+        color: tagColorList[index].color
+      })
+      .css({
+        'font-size': '12px'
+      })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-20 21:04:11 
-     * @Desc: 标签矩形 
-     */
-    tagRect(node, index) {
-        node.fill({
-            color: tagColorList[index].background
-        })
-    }
+  //  标签矩形
+  tagRect(node, index) {
+    node.fill({
+      color: tagColorList[index].background
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-03 22:37:19 
-     * @Desc: 内置图标 
-     */
-    iconNode(node) {
-        node.attr({
-            fill: this.merge('color')
-        })
-    }
+  //  内置图标
+  iconNode(node) {
+    node.attr({
+      fill: this.merge('color')
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 14:50:49 
-     * @Desc: 连线 
-     */
-    line(node, { width, color, dasharray } = {}) {
-        node.stroke({ width, color, dasharray }).fill({ color: 'none' })
-    }
+  //  连线
+  line(node, { width, color, dasharray } = {}) {
+    node.stroke({ width, color, dasharray }).fill({ color: 'none' })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-30 16:19:03 
-     * @Desc: 概要连线 
-     */
-    generalizationLine(node) {
-        node.stroke({ width: this.merge('generalizationLineWidth', true), color: this.merge('generalizationLineColor', true) }).fill({ color: 'none' })
-    }
+  //  概要连线
+  generalizationLine(node) {
+    node
+      .stroke({
+        width: this.merge('generalizationLineWidth', true),
+        color: this.merge('generalizationLineColor', true)
+      })
+      .fill({ color: 'none' })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 20:03:59 
-     * @Desc: 按钮 
-     */
-    iconBtn(node, fillNode) {
-        node.fill({ color: '#808080' })
-        fillNode.fill({ color: '#fff' })
+  //  展开收起按钮
+  iconBtn(node, node2, fillNode) {
+    let { color, fill } = this.ctx.mindMap.opt.expandBtnStyle || {
+      color: '#808080',
+      fill: '#fff'
    }
+    node.fill({ color: color })
+    node2.fill({ color: color })
+    fillNode.fill({ color: fill })
+  }
 }

-export default Style
+export default Style
--- a/simple-mind-map/src/TextEdit.js
+++ b/simple-mind-map/src/TextEdit.js
@@ -1,146 +1,137 @@
-import {
-    getStrWithBrFromHtml
-} from './utils'
+import { getStrWithBrFromHtml } from './utils'

-/** 
- * javascript comment 
- * @Author: 王林25 
- * @Date: 2021-06-19 11:11:28 
- * @Desc: 节点文字编辑类 
- */
+//  节点文字编辑类
 export default class TextEdit {
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-06-19 11:22:57 
-     * @Desc: 构造函数 
-     */
-    constructor(renderer) {
-        this.renderer = renderer
-        this.mindMap = renderer.mindMap
-        // 文本编辑框
-        this.textEditNode = null
-        // 文本编辑框是否显示
-        this.showTextEdit = false
-        this.bindEvent()
-    }
+  //  构造函数
+  constructor(renderer) {
+    this.renderer = renderer
+    this.mindMap = renderer.mindMap
+    // 文本编辑框
+    this.textEditNode = null
+    // 文本编辑框是否显示
+    this.showTextEdit = false
+    this.bindEvent()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 13:27:04 
-     * @Desc: 事件 
-     */
-    bindEvent() {
-        this.show = this.show.bind(this)
-        // 节点双击事件
-        this.mindMap.on('node_dblclick', this.show)
-        // 点击事件
-        this.mindMap.on('draw_click', () => {
-            // 隐藏文本编辑框
-            this.hideEditTextBox()
-        })
-        // 展开收缩按钮点击事件
-        this.mindMap.on('expand_btn_click', () => {
-            this.hideEditTextBox()
-        })
-        // 节点激活前事件
-        this.mindMap.on('before_node_active', () => {
-            this.hideEditTextBox()
-        })
-        // 注册编辑快捷键
-        this.mindMap.keyCommand.addShortcut('F2', () => {
-            if (this.renderer.activeNodeList.length <= 0) {
-                return
-            }
-            this.show(this.renderer.activeNodeList[0])
-        })
-    }
+  //  事件
+  bindEvent() {
+    this.show = this.show.bind(this)
+    // 节点双击事件
+    this.mindMap.on('node_dblclick', this.show)
+    // 点击事件
+    this.mindMap.on('draw_click', () => {
+      // 隐藏文本编辑框
+      this.hideEditTextBox()
+    })
+    this.mindMap.on('svg_mousedown', () => {
+      // 隐藏文本编辑框
+      this.hideEditTextBox()
+    })
+    // 展开收缩按钮点击事件
+    this.mindMap.on('expand_btn_click', () => {
+      this.hideEditTextBox()
+    })
+    // 节点激活前事件
+    this.mindMap.on('before_node_active', () => {
+      this.hideEditTextBox()
+    })
+    // 注册编辑快捷键
+    this.mindMap.keyCommand.addShortcut('F2', () => {
+      if (this.renderer.activeNodeList.length <= 0) {
+        return
+      }
+      this.show(this.renderer.activeNodeList[0])
+    })
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-08-16 16:27:02 
-     * @Desc: 注册临时快捷键 
-     */
-    registerTmpShortcut() {
-        // 注册回车快捷键
-        this.mindMap.keyCommand.addShortcut('Enter', () => {
-            this.hideEditTextBox()
-        })
-    }
+  //  注册临时快捷键
+  registerTmpShortcut() {
+    // 注册回车快捷键
+    this.mindMap.keyCommand.addShortcut('Enter', () => {
+      this.hideEditTextBox()
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-13 22:15:56 
-     * @Desc: 显示文本编辑框 
-     */
-    show(node) {
-        this.showEditTextBox(node, node._textData.node.node.getBoundingClientRect())
+  //  显示文本编辑框
+  show(node) {
+    let rect = node._textData.node.node.getBoundingClientRect()
+    if (this.mindMap.richText) {
+      this.mindMap.richText.showEditText(node, rect)
+      return
    }
+    this.showEditTextBox(node, rect)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-13 22:13:02 
-     * @Desc: 显示文本编辑框 
-     */
-    showEditTextBox(node, rect) {
-        this.mindMap.emit('before_show_text_edit')
-        this.registerTmpShortcut()
-        if (!this.textEditNode) {
-            this.textEditNode = document.createElement('div')
-            this.textEditNode.style.cssText = `position:fixed;box-sizing: border-box;background-color:#fff;box-shadow: 0 0 20px rgba(0,0,0,.5);padding: 3px 5px;margin-left: -5px;margin-top: -3px;outline: none;`
-            this.textEditNode.setAttribute('contenteditable', true)
-            document.body.appendChild(this.textEditNode)
-        }
-        node.style.domText(this.textEditNode, this.mindMap.view.scale)
-        this.textEditNode.innerHTML = node.nodeData.data.text.split(/\n/img).join('<br>')
-        this.textEditNode.style.minWidth = rect.width + 10 + 'px'
-        this.textEditNode.style.minHeight = rect.height + 6 + 'px'
-        this.textEditNode.style.left = rect.left + 'px'
-        this.textEditNode.style.top = rect.top + 'px'
-        this.textEditNode.style.display = 'block'
-        this.showTextEdit = true
-        // 选中文本
-        this.selectNodeText()
+  //  显示文本编辑框
+  showEditTextBox(node, rect) {
+    this.mindMap.emit('before_show_text_edit')
+    this.registerTmpShortcut()
+    if (!this.textEditNode) {
+      this.textEditNode = document.createElement('div')
+      this.textEditNode.style.cssText = `position:fixed;box-sizing: border-box;background-color:#fff;box-shadow: 0 0 20px rgba(0,0,0,.5);padding: 3px 5px;margin-left: -5px;margin-top: -3px;outline: none; word-break: break-all;`
+      this.textEditNode.setAttribute('contenteditable', true)
+      this.textEditNode.addEventListener('keyup', e => {
+        e.stopPropagation()
+      })
+      document.body.appendChild(this.textEditNode)
    }
+    let scale = this.mindMap.view.scale
+    let lineHeight = node.style.merge('lineHeight')
+    let fontSize = node.style.merge('fontSize')
+    let textLines = node.nodeData.data.text.split(/\n/gim)
+    node.style.domText(this.textEditNode, scale, textLines.length)
+    this.textEditNode.innerHTML = textLines.join('<br>')
+    this.textEditNode.style.minWidth = rect.width + 10 + 'px'
+    this.textEditNode.style.minHeight = rect.height + 6 + 'px'
+    this.textEditNode.style.left = rect.left + 'px'
+    this.textEditNode.style.top = rect.top + 'px'
+    this.textEditNode.style.display = 'block'
+    this.textEditNode.style.maxWidth = this.mindMap.opt.textAutoWrapWidth * scale + 'px'
+    if (textLines.length > 1 && lineHeight !== 1) {
+      this.textEditNode.style.transform = `translateY(${-((lineHeight * fontSize - fontSize) / 2 - 2) * scale}px)`
+    }
+    this.showTextEdit = true
+    // 选中文本
+    this.selectNodeText()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-08-02 23:13:50 
-     * @Desc: 选中文本 
-     */
-    selectNodeText() {
-        let selection = window.getSelection()
-        let range = document.createRange()
-        range.selectNodeContents(this.textEditNode)
-        selection.removeAllRanges()
-        selection.addRange(range)
-    }
+  //  选中文本
+  selectNodeText() {
+    let selection = window.getSelection()
+    let range = document.createRange()
+    range.selectNodeContents(this.textEditNode)
+    selection.removeAllRanges()
+    selection.addRange(range)
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-24 13:48:16 
-     * @Desc: 隐藏文本编辑框 
-     */
-    hideEditTextBox() {
-        if (!this.showTextEdit) {
-            return
-        }
-        this.renderer.activeNodeList.forEach((node) => {
-            let str = getStrWithBrFromHtml(this.textEditNode.innerHTML)
-            this.mindMap.execCommand('SET_NODE_TEXT', node, str)
-            if (node.isGeneralization) {
-                // 概要节点
-                node.generalizationBelongNode.updateGeneralization()
-            }
-            this.mindMap.render()
-        })
-        this.mindMap.emit('hide_text_edit', this.textEditNode, this.renderer.activeNodeList)
-        this.textEditNode.style.display = 'none'
-        this.textEditNode.innerHTML = ''
-        this.textEditNode.style.fontFamily = 'inherit'
-        this.textEditNode.style.fontSize = 'inherit'
-        this.textEditNode.style.fontWeight = 'normal'
-        this.showTextEdit = false
+  //  隐藏文本编辑框
+  hideEditTextBox() {
+    if (this.mindMap.richText) {
+      return this.mindMap.richText.hideEditText()
    }
-}
+    if (!this.showTextEdit) {
+      return
+    }
+    this.renderer.activeNodeList.forEach(node => {
+      let str = getStrWithBrFromHtml(this.textEditNode.innerHTML)
+      this.mindMap.execCommand('SET_NODE_TEXT', node, str)
+      if (node.isGeneralization) {
+        // 概要节点
+        node.generalizationBelongNode.updateGeneralization()
+      }
+      this.mindMap.render()
+    })
+    this.mindMap.emit(
+      'hide_text_edit',
+      this.textEditNode,
+      this.renderer.activeNodeList
+    )
+    this.textEditNode.style.display = 'none'
+    this.textEditNode.innerHTML = ''
+    this.textEditNode.style.fontFamily = 'inherit'
+    this.textEditNode.style.fontSize = 'inherit'
+    this.textEditNode.style.fontWeight = 'normal'
+    this.textEditNode.style.transform = 'translateY(0)'
+    this.showTextEdit = false
+  }
+}
--- a/simple-mind-map/src/View.js
+++ b/simple-mind-map/src/View.js
@@ -1,215 +1,195 @@
-/** 
- * javascript comment 
- * @Author: 王林25 
- * @Date: 2021-04-07 14:45:24 
- * @Desc: 视图操作类 
- */
+import { CONSTANTS } from './utils/constant'
+
+//  视图操作类
 class View {
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:45:40 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        this.opt = opt
-        this.mindMap = this.opt.mindMap
-        this.scale = 1
-        this.sx = 0
-        this.sy = 0
-        this.x = 0
-        this.y = 0
-        this.firstDrag = true
-        this.setTransformData(this.mindMap.opt.viewData)
-        this.bind()
-    }
+  //  构造函数
+  constructor(opt = {}) {
+    this.opt = opt
+    this.mindMap = this.opt.mindMap
+    this.scale = 1
+    this.sx = 0
+    this.sy = 0
+    this.x = 0
+    this.y = 0
+    this.firstDrag = true
+    this.setTransformData(this.mindMap.opt.viewData)
+    this.bind()
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 15:38:51 
-     * @Desc: 绑定 
-     */
-    bind() {
-        // 快捷键
-        this.mindMap.keyCommand.addShortcut('Control+=', () => {
-            this.enlarge()
-        })
-        this.mindMap.keyCommand.addShortcut('Control+-', () => {
+  //  绑定
+  bind() {
+    // 快捷键
+    this.mindMap.keyCommand.addShortcut('Control+=', () => {
+      this.enlarge()
+    })
+    this.mindMap.keyCommand.addShortcut('Control+-', () => {
+      this.narrow()
+    })
+    this.mindMap.keyCommand.addShortcut('Control+Enter', () => {
+      this.reset()
+    })
+    this.mindMap.svg.on('dblclick', () => {
+      this.reset()
+    })
+    // 拖动视图
+    this.mindMap.event.on('mousedown', () => {
+      this.sx = this.x
+      this.sy = this.y
+    })
+    this.mindMap.event.on('drag', (e, event) => {
+      if (e.ctrlKey) {
+        // 按住ctrl键拖动为多选
+        return
+      }
+      if (this.firstDrag) {
+        this.firstDrag = false
+        // 清除激活节点
+        if (this.mindMap.renderer.activeNodeList.length > 0) {
+          this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
+        }
+      }
+      this.x = this.sx + event.mousemoveOffset.x
+      this.y = this.sy + event.mousemoveOffset.y
+      this.transform()
+    })
+    this.mindMap.event.on('mouseup', () => {
+      this.firstDrag = true
+    })
+    // 放大缩小视图
+    this.mindMap.event.on('mousewheel', (e, dir) => {
+      if (this.mindMap.opt.customHandleMousewheel && typeof this.mindMap.opt.customHandleMousewheel === 'function') {
+        return this.mindMap.opt.customHandleMousewheel(e)
+      }
+      if (this.mindMap.opt.mousewheelAction === CONSTANTS.MOUSE_WHEEL_ACTION.ZOOM) {
+        switch (dir) {
+          // 鼠标滚轮，向上和向左，都是缩小
+          case CONSTANTS.DIR.UP:
+          case CONSTANTS.DIR.LEFT:
            this.narrow()
-        })
-        this.mindMap.keyCommand.addShortcut('Control+Enter', () => {
-            this.reset()
-        })
-        this.mindMap.svg.on('dblclick', () => {
-            this.reset()
-        })
-        // 拖动视图
-        this.mindMap.event.on('mousedown', () => {
-            this.sx = this.x
-            this.sy = this.y
-        })
-        this.mindMap.event.on('drag', (e, event) => {
-            if (e.ctrlKey) {
-                // 按住ctrl键拖动为多选
-                return
-            }
-            if (this.firstDrag) {
-                this.firstDrag = false
-                // 清除激活节点
-                this.mindMap.execCommand('CLEAR_ACTIVE_NODE')
-            }
-            this.x = this.sx + event.mousemoveOffset.x
-            this.y = this.sy + event.mousemoveOffset.y
-            this.transform()
-        })
-        this.mindMap.event.on('mouseup', () => {
-            this.firstDrag = true
-        })
-        // 放大缩小视图
-        this.mindMap.event.on('mousewheel', (e, dir) => {
-            // // 放大
-            if (dir === 'down') {
-                this.enlarge()
-            } else { // 缩小
-                this.narrow()
-            }
-        })
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-22 18:30:24 
-     * @Desc: 获取当前变换状态数据 
-     */
-    getTransformData() {
-        return {
-            transform: this.mindMap.draw.transform(),
-            state: {
-                scale: this.scale,
-                x: this.x,
-                y: this.y,
-                sx: this.sx,
-                sy: this.sy
-            }
+            break
+          // 鼠标滚轮，向下和向右，都是放大
+          case CONSTANTS.DIR.DOWN:
+          case CONSTANTS.DIR.RIGHT:
+            this.enlarge()
+            break
        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-11-22 19:54:17 
-     * @Desc: 动态设置变换状态数据 
-     */
-    setTransformData(viewData) {
-        if (viewData) {
-            Object.keys(viewData.state).forEach((prop) => {
-                this[prop] = viewData.state[prop]
-            })
-            this.mindMap.draw.transform({
-                ...viewData.transform
-            })
-            this.mindMap.emit('view_data_change', this.getTransformData())
-            this.mindMap.emit('scale', this.scale)
+      } else {
+        switch (dir){
+          // 上移
+          case CONSTANTS.DIR.DOWN:
+            this.translateY(-this.mindMap.opt.mousewheelMoveStep)
+            break
+          // 下移
+          case CONSTANTS.DIR.UP:
+            this.translateY(this.mindMap.opt.mousewheelMoveStep)
+            break
+          // 右移
+          case CONSTANTS.DIR.LEFT:
+            this.translateX(-this.mindMap.opt.mousewheelMoveStep)
+            break
+          // 左移
+          case CONSTANTS.DIR.RIGHT:
+            this.translateX(this.mindMap.opt.mousewheelMoveStep)
+            break
        }
-    }
+      }
+    })
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-13 15:49:06 
-     * @Desc: 平移x方向 
-     */
-    translateX(step) {
-        this.x += step
-        this.transform()
+  //  获取当前变换状态数据
+  getTransformData() {
+    return {
+      transform: this.mindMap.draw.transform(),
+      state: {
+        scale: this.scale,
+        x: this.x,
+        y: this.y,
+        sx: this.sx,
+        sy: this.sy
+      }
    }
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-10-10 14:03:53 
-     * @Desc: 平移x方式到 
-     */
-    translateXTo(x) {
-        this.x = x
-        this.transform()
+  //  动态设置变换状态数据
+  setTransformData(viewData) {
+    if (viewData) {
+      Object.keys(viewData.state).forEach(prop => {
+        this[prop] = viewData.state[prop]
+      })
+      this.mindMap.draw.transform({
+        ...viewData.transform
+      })
+      this.mindMap.emit('view_data_change', this.getTransformData())
+      this.mindMap.emit('scale', this.scale)
    }
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-13 15:48:52 
-     * @Desc: 平移y方向 
-     */
-    translateY(step) {
-        this.y += step
-        this.transform()
-    }
+  //  平移x方向
+  translateX(step) {
+    this.x += step
+    this.transform()
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-10-10 14:04:10 
-     * @Desc: 平移y方向到 
-     */
-    translateYTo(y) {
-        this.y = y
-        this.transform()
-    }
+  //  平移x方式到
+  translateXTo(x) {
+    this.x = x
+    this.transform()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 17:13:14 
-     * @Desc:  应用变换
-     */
-    transform() {
-        this.mindMap.draw.transform({
-            scale: this.scale,
-            // origin: 'center center',
-            translate: [this.x, this.y],
-        })
-        this.mindMap.emit('view_data_change', this.getTransformData())
-    }
+  //  平移y方向
+  translateY(step) {
+    this.y += step
+    this.transform()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-11 17:41:35 
-     * @Desc: 恢复
-     */
-    reset() {
-        this.scale = 1
-        this.x = 0
-        this.y = 0
-        this.transform()
-    }
+  //  平移y方向到
+  translateYTo(y) {
+    this.y = y
+    this.transform()
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 17:10:34 
-     * @Desc: 缩小 
-     */
-    narrow() {
-        if (this.scale - this.mindMap.opt.scaleRatio > 0.1) {
-            this.scale -= this.mindMap.opt.scaleRatio
-        } else {
-            this.scale = 0.1
-        }
-        this.transform()
-        this.mindMap.emit('scale', this.scale)
-    }
+  //   应用变换
+  transform() {
+    this.mindMap.draw.transform({
+      scale: this.scale,
+      // origin: 'center center',
+      translate: [this.x, this.y]
+    })
+    this.mindMap.emit('view_data_change', this.getTransformData())
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-04 17:10:41 
-     * @Desc: 放大 
-     */
-    enlarge() {
-        this.scale += this.mindMap.opt.scaleRatio
-        this.transform()
-        this.mindMap.emit('scale', this.scale)
+  //  恢复
+  reset() {
+    this.scale = 1
+    this.x = 0
+    this.y = 0
+    this.transform()
+  }
+
+  //  缩小
+  narrow() {
+    if (this.scale - this.mindMap.opt.scaleRatio > 0.1) {
+      this.scale -= this.mindMap.opt.scaleRatio
+    } else {
+      this.scale = 0.1
    }
+    this.transform()
+    this.mindMap.emit('scale', this.scale)
+  }
+
+  //  放大
+  enlarge() {
+    this.scale += this.mindMap.opt.scaleRatio
+    this.transform()
+    this.mindMap.emit('scale', this.scale)
+  }
+
+  //  设置缩放
+  setScale(scale) {
+    this.scale = scale
+    this.transform()
+    this.mindMap.emit('scale', this.scale)
+  }
 }

-export default View
+export default View
--- a/simple-mind-map/src/Watermark.js
+++ b/simple-mind-map/src/Watermark.js
@@ -0,0 +1,120 @@
+import { Text, G } from '@svgdotjs/svg.js'
+import { degToRad, camelCaseToHyphen } from './utils'
+import merge from 'deepmerge'
+
+// 水印类
+class Watermark {
+  constructor(opt = {}) {
+    this.mindMap = opt.mindMap
+    this.lineSpacing = 0 // 水印行间距
+    this.textSpacing = 0 // 行内水印间距
+    this.angle = 0 // 旋转角度
+    this.text = '' // 水印文字
+    this.textStyle = {} // 水印文字样式
+    this.watermarkDraw = this.mindMap.svg
+      .group()
+      .css({ 'pointer-events': 'none', 'user-select': 'none' })
+    this.maxLong = Math.sqrt(
+      Math.pow(this.mindMap.width, 2) + Math.pow(this.mindMap.height, 2)
+    )
+    this.updateWatermark(this.mindMap.opt.watermarkConfig || {})
+  }
+
+  // 获取是否存在水印
+  hasWatermark() {
+    return !!this.text.trim()
+  }
+
+  // 处理水印配置
+  handleConfig({ text, lineSpacing, textSpacing, angle, textStyle }) {
+    this.text = text === undefined ? '' : String(text).trim()
+    this.lineSpacing =
+      typeof lineSpacing === 'number' && lineSpacing > 0 ? lineSpacing : 100
+    this.textSpacing =
+      typeof textSpacing === 'number' && textSpacing > 0 ? textSpacing : 100
+    this.angle =
+      typeof angle === 'number' && angle >= 0 && angle <= 90 ? angle : 30
+    this.textStyle = Object.assign(this.textStyle, textStyle || {})
+  }
+
+  // 绘制水印
+  // 非精确绘制，会绘制一些超出可视区域的水印
+  draw() {
+    this.watermarkDraw.clear()
+    if (!this.hasWatermark()) {
+      return
+    }
+    let x = 0
+    while (x < this.mindMap.width) {
+      this.drawText(x)
+      x += this.lineSpacing / Math.sin(degToRad(this.angle))
+    }
+
+    let yOffset =
+      this.lineSpacing / Math.cos(degToRad(this.angle)) || this.lineSpacing
+    let y = yOffset
+    while (y < this.mindMap.height) {
+      this.drawText(0, y)
+      y += yOffset
+    }
+  }
+
+  // 绘制文字
+  drawText(x, y) {
+    let long = Math.min(
+      this.maxLong,
+      (this.mindMap.width - x) / Math.cos(degToRad(this.angle))
+    )
+    let g = new G()
+    let bbox = null
+    let bboxWidth = 0
+    let textHeight = -1
+    while (bboxWidth < long) {
+      let text = new Text().text(this.text)
+      g.add(text)
+      text.transform({
+        translateX: bboxWidth
+      })
+      this.setTextStyle(text)
+      bbox = g.bbox()
+      if (textHeight === -1) {
+        textHeight = bbox.height
+      }
+      bboxWidth = bbox.width + this.textSpacing
+    }
+    let params = {
+      rotate: this.angle,
+      origin: 'top left',
+      translateX: x,
+      translateY: textHeight
+    }
+    if (y !== undefined) {
+      params.translateY = y + textHeight
+    }
+    g.transform(params)
+    this.watermarkDraw.add(g)
+  }
+
+  // 给文字设置样式
+  setTextStyle(text) {
+    Object.keys(this.textStyle).forEach(item => {
+      let value = this.textStyle[item]
+      if (item === 'color') {
+        text.fill(value)
+      } else {
+        text.css(camelCaseToHyphen(item), value)
+      }
+    })
+  }
+
+  // 更新水印
+  updateWatermark(config) {
+    this.mindMap.opt.watermarkConfig = merge(this.mindMap.opt.watermarkConfig, config)
+    this.handleConfig(config)
+    this.draw()
+  }
+}
+
+Watermark.instanceName = 'watermark'
+
+export default Watermark
--- a/simple-mind-map/src/css/quill.css
+++ b/simple-mind-map/src/css/quill.css
@@ -0,0 +1,11 @@
+.ql-editor {
+    overflow: hidden;
+    padding: 0;
+    height: auto;
+    line-height: normal;
+}
+
+.ql-container {
+    height: auto;
+    font-size: inherit;
+}
--- a/simple-mind-map/src/layouts/Base.js
+++ b/simple-mind-map/src/layouts/Base.js
@@ -1,248 +1,253 @@
 import Node from '../Node'
-import {
-    walk,
-} from '../utils'
+import { CONSTANTS } from '../utils/constant'

-/** 
- * @Author: 王林 
- * @Date: 2021-04-12 22:24:30 
- * @Desc: 布局基类 
- */
+//  布局基类
 class Base {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:25:16 
-     * @Desc: 构造函数 
-     */
-    constructor(renderer) {
-        // 渲染实例
-        this.renderer = renderer
-        // 控制实例
-        this.mindMap = renderer.mindMap
-        // 绘图对象
-        this.draw = this.mindMap.draw
-        // 根节点
-        this.root = null
+  //  构造函数
+  constructor(renderer) {
+    // 渲染实例
+    this.renderer = renderer
+    // 控制实例
+    this.mindMap = renderer.mindMap
+    // 绘图对象
+    this.draw = this.mindMap.draw
+    // 根节点
+    this.root = null
+    // 保存所有uid和节点，用于复用
+    this.nodePool = {}
+  }
+
+  //  计算节点位置
+  doLayout() {
+    throw new Error('【computed】方法为必要方法，需要子类进行重写！')
+  }
+
+  //  连线
+  renderLine() {
+    throw new Error('【renderLine】方法为必要方法，需要子类进行重写！')
+  }
+
+  //  定位展开收缩按钮
+  renderExpandBtn() {
+    throw new Error('【renderExpandBtn】方法为必要方法，需要子类进行重写！')
+  }
+
+  //  概要节点
+  renderGeneralization() {}
+
+  // 通过uid缓存节点
+  cacheNode(uid, node) {
+    // 记录本次渲染时的节点
+    this.renderer.nodeCache[uid] = node
+    // 记录所有渲染时的节点
+    this.nodePool[uid] = node
+    // 如果总缓存数量达到1000，直接清空
+    if (Object.keys(this.nodePool).length > 1000) {
+      this.clearNodePool()
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:39:50 
-     * @Desc: 计算节点位置 
-     */
-    doLayout() {
-        throw new Error('【computed】方法为必要方法，需要子类进行重写！')
+  // 清空节点存储池
+  clearNodePool() {
+    this.nodePool = {}
+  }
+
+  // 检查当前来源是否需要重新计算节点大小
+  checkIsNeedResizeSources() {
+    return [CONSTANTS.CHANGE_THEME, CONSTANTS.TRANSFORM_TO_NORMAL_NODE].includes(this.renderer.renderSource)
+  }
+
+  //  创建节点实例
+  createNode(data, parent, isRoot, layerIndex) {
+    // 创建节点
+    let newNode = null
+    // 数据上保存了节点引用，那么直接复用节点
+    if (data && data._node && !this.renderer.reRender) {
+      newNode = data._node
+      newNode.reset()
+      newNode.layerIndex = layerIndex
+      this.cacheNode(data._node.uid, newNode)
+      // 主题或主题配置改变了需要重新计算节点大小和布局
+      if (this.checkIsNeedResizeSources()) {
+        newNode.getSize()
+        newNode.needLayout = true
+      }
+    } else if (this.nodePool[data.data.uid] && !this.renderer.reRender) {
+      // 数据上没有保存节点引用，但是通过uid找到了缓存的节点，也可以复用
+      newNode = this.nodePool[data.data.uid]
+      // 保存该节点上一次的数据
+      let lastData = JSON.stringify(newNode.nodeData.data)
+      newNode.reset()
+      newNode.nodeData = newNode.handleData(data || {})
+      newNode.layerIndex = layerIndex
+      this.cacheNode(data.data.uid, newNode)
+      data._node = newNode
+      // 主题或主题配置改变了需要重新计算节点大小和布局
+      let isResizeSource = this.checkIsNeedResizeSources()
+      // 节点数据改变了需要重新计算节点大小和布局
+      let isNodeDataChange = lastData !== JSON.stringify(data.data)
+      if (isResizeSource || isNodeDataChange) {
+        newNode.getSize()
+        newNode.needLayout = true
+      }
+    } else {
+      // 创建新节点
+      let uid = this.mindMap.uid++
+      newNode = new Node({
+        data,
+        uid,
+        renderer: this.renderer,
+        mindMap: this.mindMap,
+        draw: this.draw,
+        layerIndex
+      })
+      // uid保存到数据上，为了节点复用
+      data.data.uid = uid
+      this.cacheNode(uid, newNode)
+      // 数据关联实际节点
+      data._node = newNode
+      if (data.data.isActive) {
+        this.renderer.addActiveNode(newNode)
+      }
    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:41:04 
-     * @Desc: 连线 
-     */
-    renderLine() {
-        throw new Error('【renderLine】方法为必要方法，需要子类进行重写！')
+    // 根节点
+    if (isRoot) {
+      newNode.isRoot = true
+      this.root = newNode
+    } else {
+      // 互相收集
+      newNode.parent = parent._node
+      parent._node.addChildren(newNode)
    }
+    return newNode
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:42:08 
-     * @Desc: 定位展开收缩按钮 
-     */
-    renderExpandBtn() {
-        throw new Error('【renderExpandBtn】方法为必要方法，需要子类进行重写！')
-    }
+  //  定位节点到画布中间
+  setNodeCenter(node) {
+    node.left = (this.mindMap.width - node.width) / 2
+    node.top = (this.mindMap.height - node.height) / 2
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-30 22:49:28 
-     * @Desc: 概要节点 
-     */
-    renderGeneralization() {}
+  //  更新子节点属性
+  updateChildren(children, prop, offset) {
+    children.forEach(item => {
+      item[prop] += offset
+      if (item.children && item.children.length && !item.hasCustomPosition()) {
+        // 适配自定义位置
+        this.updateChildren(item.children, prop, offset)
+      }
+    })
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-10 21:30:54 
-     * @Desc: 创建节点实例 
-     */
-    createNode(data, parent, isRoot, layerIndex) {
-        // 创建节点
-        let newNode = null
-        // 复用节点
-        if (data && data._node && !this.renderer.reRender) {
-            newNode = data._node
-            newNode.reset()
-            newNode.layerIndex = layerIndex
-        } else {// 创建新节点
-            newNode = new Node({
-                data,
-                uid: this.mindMap.uid++,
-                renderer: this.renderer,
-                mindMap: this.mindMap,
-                draw: this.draw,
-                layerIndex
-            })
-            newNode.getSize()
-            // 数据关联实际节点
-            data._node = newNode
-            if (data.data.isActive) {
-                this.renderer.addActiveNode(newNode)
-            }
-        }
-        // 根节点
-        if (isRoot) {
-            newNode.isRoot = true
-            this.root = newNode
-        } else {
-            // 互相收集
-            newNode.parent = parent._node
-            parent._node.addChildren(newNode)
-        }
-        return newNode;
-    }
+  //  二次贝塞尔曲线
+  quadraticCurvePath(x1, y1, x2, y2) {
+    let cx = x1 + (x2 - x1) * 0.2
+    let cy = y1 + (y2 - y1) * 0.8
+    return `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-07-16 13:48:43 
-     * @Desc: 定位节点到画布中间 
-     */
-    setNodeCenter(node) {
-        node.left = (this.mindMap.width - node.width) / 2
-        node.top = (this.mindMap.height - node.height) / 2
-    }
+  //  三次贝塞尔曲线
+  cubicBezierPath(x1, y1, x2, y2) {
+    let cx1 = x1 + (x2 - x1) / 2
+    let cy1 = y1
+    let cx2 = cx1
+    let cy2 = y2
+    return `M ${x1},${y1} C ${cx1},${cy1} ${cx2},${cy2} ${x2},${y2}`
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 11:25:52 
-     * @Desc: 更新子节点属性 
-     */
-    updateChildren(children, prop, offset) {
-        children.forEach((item) => {
-            item[prop] += offset
-            if (item.children && item.children.length && !item.hasCustomPosition()) {// 适配自定义位置
-                this.updateChildren(item.children, prop, offset)
-            }
+  //   获取节点的marginX
+  getMarginX(layerIndex) {
+    return layerIndex === 1
+      ? this.mindMap.themeConfig.second.marginX
+      : this.mindMap.themeConfig.node.marginX
+  }
+
+  //  获取节点的marginY
+  getMarginY(layerIndex) {
+    return layerIndex === 1
+      ? this.mindMap.themeConfig.second.marginY
+      : this.mindMap.themeConfig.node.marginY
+  }
+
+  //  获取节点包括概要在内的宽度
+  getNodeWidthWithGeneralization(node) {
+    return Math.max(
+      node.width,
+      node.checkHasGeneralization() ? node._generalizationNodeWidth : 0
+    )
+  }
+
+  //  获取节点包括概要在内的高度
+  getNodeHeightWithGeneralization(node) {
+    return Math.max(
+      node.height,
+      node.checkHasGeneralization() ? node._generalizationNodeHeight : 0
+    )
+  }
+
+  //  获取节点的边界值
+  /**
+   * dir：生长方向，h（水平）、v（垂直）
+   * isLeft：是否向左生长
+   */
+  getNodeBoundaries(node, dir) {
+    let { generalizationLineMargin, generalizationNodeMargin } =
+      this.mindMap.themeConfig
+    let walk = root => {
+      let _left = Infinity
+      let _right = -Infinity
+      let _top = Infinity
+      let _bottom = -Infinity
+      if (root.children && root.children.length > 0) {
+        root.children.forEach(child => {
+          let { left, right, top, bottom } = walk(child)
+          // 概要内容的宽度
+          let generalizationWidth =
+            child.checkHasGeneralization() && child.nodeData.data.expand
+              ? child._generalizationNodeWidth + generalizationNodeMargin
+              : 0
+          // 概要内容的高度
+          let generalizationHeight =
+            child.checkHasGeneralization() && child.nodeData.data.expand
+              ? child._generalizationNodeHeight + generalizationNodeMargin
+              : 0
+          if (left - (dir === 'h' ? generalizationWidth : 0) < _left) {
+            _left = left - (dir === 'h' ? generalizationWidth : 0)
+          }
+          if (right + (dir === 'h' ? generalizationWidth : 0) > _right) {
+            _right = right + (dir === 'h' ? generalizationWidth : 0)
+          }
+          if (top < _top) {
+            _top = top
+          }
+          if (bottom + (dir === 'v' ? generalizationHeight : 0) > _bottom) {
+            _bottom = bottom + (dir === 'v' ? generalizationHeight : 0)
+          }
        })
+      }
+      let cur = {
+        left: root.left,
+        right: root.left + root.width,
+        top: root.top,
+        bottom: root.top + root.height
+      }
+      return {
+        left: cur.left < _left ? cur.left : _left,
+        right: cur.right > _right ? cur.right : _right,
+        top: cur.top < _top ? cur.top : _top,
+        bottom: cur.bottom > _bottom ? cur.bottom : _bottom
+      }
    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 15:05:01 
-     * @Desc: 二次贝塞尔曲线 
-     */
-    quadraticCurvePath(x1, y1, x2, y2) {
-        let cx = x1 + (x2 - x1) * 0.2
-        let cy = y1 + (y2 - y1) * 0.8
-        return `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 15:05:18 
-     * @Desc: 三次贝塞尔曲线 
-     */
-    cubicBezierPath(x1, y1, x2, y2) {
-        let cx1 = x1 + (x2 - x1) / 2
-        let cy1 = y1
-        let cx2 = cx1
-        let cy2 = y2
-        return `M ${x1},${y1} C ${cx1},${cy1} ${cx2},${cy2} ${x2},${y2}`
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-06-27 19:00:07 
-     * @Desc:  获取节点的marginX
-     */
-    getMarginX(layerIndex) {
-        return layerIndex === 1 ? this.mindMap.themeConfig.second.marginX : this.mindMap.themeConfig.node.marginX;
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 15:34:20 
-     * @Desc: 获取节点的marginY
-     */
-    getMarginY(layerIndex) {
-        return layerIndex === 1 ? this.mindMap.themeConfig.second.marginY : this.mindMap.themeConfig.node.marginY;
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-31 20:53:12 
-     * @Desc: 获取节点包括概要在内的宽度 
-     */
-    getNodeWidthWithGeneralization(node) {
-        return Math.max(node.width, node.checkHasGeneralization() ? node._generalizationNodeWidth : 0)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-31 20:53:12 
-     * @Desc: 获取节点包括概要在内的高度 
-     */
-    getNodeHeightWithGeneralization(node) {
-        return Math.max(node.height, node.checkHasGeneralization() ? node._generalizationNodeHeight : 0)
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-31 09:14:03 
-     * @Desc: 获取节点的边界值 
-     * dir：生长方向，h（水平）、v（垂直）
-     * isLeft：是否向左生长
-     */
-    getNodeBoundaries(node, dir, isLeft) {
-        let { generalizationLineMargin, generalizationNodeMargin } = this.mindMap.themeConfig
-        let walk = (root) => {
-            let _left = Infinity
-            let _right = -Infinity
-            let _top = Infinity
-            let _bottom = -Infinity
-            if (root.children && root.children.length > 0) {
-                root.children.forEach((child) => {
-                    let {left, right, top, bottom} = walk(child)
-                    // 概要内容的宽度
-                    let generalizationWidth = child.checkHasGeneralization() && child.nodeData.data.expand ? child._generalizationNodeWidth + generalizationNodeMargin : 0
-                    // 概要内容的高度
-                    let generalizationHeight = child.checkHasGeneralization() && child.nodeData.data.expand ? child._generalizationNodeHeight + generalizationNodeMargin : 0
-                    if (left - (dir === 'h' ? generalizationWidth : 0) < _left) {
-                        _left = left - (dir === 'h' ? generalizationWidth : 0)
-                    }
-                    if (right + (dir === 'h' ? generalizationWidth : 0) > _right) {
-                        _right = right + (dir === 'h' ? generalizationWidth : 0)
-                    }
-                    if (top < _top) {
-                        _top = top
-                    }
-                    if (bottom + (dir === 'v' ? generalizationHeight : 0) > _bottom) {
-                        _bottom = bottom + (dir === 'v' ? generalizationHeight : 0)
-                    }
-                })
-            }
-            let cur = {
-                left: root.left,
-                right: root.left + root.width,
-                top: root.top,
-                bottom: root.top + root.height
-            }
-            return {
-                left: cur.left < _left ? cur.left : _left,
-                right: cur.right > _right ? cur.right : _right,
-                top: cur.top < _top ? cur.top : _top,
-                bottom: cur.bottom > _bottom ? cur.bottom : _bottom
-            }
-        }
-        let {left, right, top, bottom} = walk(node)
-        return {
-            left, 
-            right,
-            top,
-            bottom,
-            generalizationLineMargin,
-            generalizationNodeMargin
-        };
+    let { left, right, top, bottom } = walk(node)
+    return {
+      left,
+      right,
+      top,
+      bottom,
+      generalizationLineMargin,
+      generalizationNodeMargin
    }
+  }
 }

-export default Base
+export default Base
--- a/simple-mind-map/src/layouts/CatalogOrganization.js
+++ b/simple-mind-map/src/layouts/CatalogOrganization.js
@@ -1,386 +1,386 @@
-import Base from './Base';
-import {
-    walk,
-    asyncRun
-} from '../utils'
+import Base from './Base'
+import { walk, asyncRun } from '../utils'

-/** 
- * @Author: 王林 
- * @Date: 2021-04-12 22:25:58 
- * @Desc: 目录组织图 
- */
+//  目录组织图
 class CatalogOrganization extends Base {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:26:31 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        super(opt)
-    }
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-06 14:04:20 
-     * @Desc: 布局
-     */
-    doLayout(callback) {
-        let task = [() => {
-            this.computedBaseValue()
-        }, () => {
-            this.computedLeftTopValue()
-        }, () => {
-            this.adjustLeftTopValue()
-        }, () => {
-            callback(this.root)
-        }]
-        asyncRun(task)
-    }
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftTopValue()
+      },
+      () => {
+        this.adjustLeftTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:49:32 
-     * @Desc: 遍历数据计算节点的left、width、height
-     */
-    computedBaseValue() {
-        walk(this.renderer.renderTree, null, (cur, parent, isRoot, layerIndex) => {
-            let newNode = this.createNode(cur, parent, isRoot, layerIndex)
-            // 根节点定位在画布中心位置
-            if (isRoot) {
-                this.setNodeCenter(newNode)
-            } else {
-                // 非根节点
-                if (parent._node.isRoot) {
-                    newNode.top = parent._node.top + parent._node.height + this.getMarginX(layerIndex)
-                }
-            }
-            if (!cur.data.expand) {
-                return true;
-            }
-        }, (cur, parent, isRoot, layerIndex) => {
-            if (isRoot) {
-                let len = cur.data.expand === false ? 0 : cur._node.children.length
-                cur._node.childrenAreaWidth = len ? cur._node.children.reduce((h, item) => {
-                    return h + item.width
-                }, 0) + (len + 1) * this.getMarginX(layerIndex + 1) : 0
-            }
-        }, true, 0)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:59:25 
-     * @Desc: 遍历节点树计算节点的left、top
-     */
-    computedLeftTopValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (node.nodeData.data.expand && node.children && node.children.length) {
-                let marginX = this.getMarginX(layerIndex + 1)
-                let marginY = this.getMarginY(layerIndex + 1)
-                if (isRoot) {
-                    let left = node.left + node.width / 2 - node.childrenAreaWidth / 2
-                    let totalLeft = left + marginX
-                    node.children.forEach((cur) => {
-                        cur.left = totalLeft
-                        totalLeft += cur.width + marginX
-                    })
-                } else {
-                    let totalTop = node.top + node.height + marginY + node.expandBtnSize
-                    node.children.forEach((cur) => {
-                        cur.left = node.left + node.width * 0.5
-                        cur.top = totalTop
-                        totalTop += cur.height + marginY + node.expandBtnSize
-                    })
-                }
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 10:04:05 
-     * @Desc: 调整节点left、top
-     */
-    adjustLeftTopValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (!node.nodeData.data.expand) {
-                return;
-            }
-            // 调整left
-            if (parent && parent.isRoot) {
-                let areaWidth = this.getNodeAreaWidth(node)
-                let difference = areaWidth - node.width
-                if (difference > 0) {
-                    this.updateBrothersLeft(node, difference / 2)
-                }
-            }
-            // 调整top
-            let len = node.children.length
-            if (parent && !parent.isRoot && len > 0) {
-                let marginY = this.getMarginY(layerIndex + 1)
-                let totalHeight = node.children.reduce((h, item) => {
-                    return h + item.height
-                }, 0) + (len + 1) * marginY + len * node.expandBtnSize
-                this.updateBrothersTop(node, totalHeight)
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-12 18:55:03 
-     * @Desc: 递归计算节点的宽度
-     */
-    getNodeAreaWidth(node) {
-        let widthArr = []
-        let loop = (node, width) => {
-            if (node.children.length) {
-                width += node.width / 2
-                node.children.forEach((item) => {
-                    loop(item, width)
-                })
-            } else {
-                width += node.width
-                widthArr.push(width)
-            }
-        }
-        loop(node, 0)
-        return Math.max(...widthArr)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-07-13 11:12:51 
-     * @Desc: 调整兄弟节点的left 
-     */
-    updateBrothersLeft(node, addWidth) {
-        if (node.parent) {
-            let childrenList = node.parent.children
-            let index = childrenList.findIndex((item) => {
-                return item === node
-            })
-            // 存在大于一个节点时，第一个或最后一个节点自身也需要移动，否则两边不对称
-            if ((index === 0 || index === childrenList.length - 1) && childrenList.length > 1) {
-                let _offset = index === 0 ? -addWidth : addWidth
-                node.left += _offset
-                if (node.children && node.children.length && !node.hasCustomPosition()) {
-                    this.updateChildren(node.children, 'left', _offset)
-                }
-            }
-            childrenList.forEach((item, _index) => {
-                if (item.hasCustomPosition()) {// 适配自定义位置
-                    return
-                }
-                let _offset = 0
-                if (_index < index) { // 左边的节点往左移
-                    _offset = -addWidth
-                } else if (_index > index) { // 右边的节点往右移
-                    _offset = addWidth
-                }
-                item.left += _offset
-                // 同步更新子节点的位置
-                if (item.children && item.children.length) {
-                    this.updateChildren(item.children, 'left', _offset)
-                }
-            })
-            // 更新父节点的位置
-            this.updateBrothersLeft(node.parent, addWidth)
-        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:26:03 
-     * @Desc: 调整兄弟节点的top
-     */
-    updateBrothersTop(node, addHeight) {
-        if (node.parent && !node.parent.isRoot) {
-            let childrenList = node.parent.children
-            let index = childrenList.findIndex((item) => {
-                return item === node
-            })
-            childrenList.forEach((item, _index) => {
-                if (item.hasCustomPosition()) {// 适配自定义位置
-                    return
-                }
-                let _offset = 0
-                // 下面的节点往下移
-                if (_index > index) {
-                    _offset = addHeight
-                }
-                item.top += _offset
-                // 同步更新子节点的位置
-                if (item.children && item.children.length) {
-                    this.updateChildren(item.children, 'top', _offset)
-                }
-            })
-            // 更新父节点的位置
-            this.updateBrothersTop(node.parent, addHeight)
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 14:42:48 
-     * @Desc: 绘制连线，连接该节点到其子节点
-     */
-    renderLine(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
-        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        let len = node.children.length
-        let marginX = this.getMarginX(node.layerIndex + 1)
-        if (node.isRoot) {
-            // 根节点
-            let x1 = left + width / 2
-            let y1 = top + height
-            let s1 = marginX * 0.7
-            let minx = Infinity
-            let maxx = -Infinity
-            node.children.forEach((item, index) => {
-                let x2 = item.left +item.width / 2
-                let y2 = item.top
-                if (x2 < minx) {
-                    minx = x2
-                }
-                if (x2 > maxx) {
-                    maxx = x2
-                }
-                let path = `M ${x2},${y1 + s1} L ${x2},${y1 + s1 > y2 ? y2 + item.height : y2}`
-                // 竖线
-                lines[index].plot(path)
-                style && style(lines[index], item)
-            })
-            minx = Math.min(minx, x1)
-            maxx = Math.max(maxx, x1)
-            // 父节点的竖线
-            let line1 = this.draw.path()
-            node.style.line(line1)
-            line1.plot(`M ${x1},${y1} L ${x1},${y1 + s1}`)
-            node._lines.push(line1)
-            style && style(line1, node)
-            // 水平线
-            if (len > 0) {
-                let lin2 = this.draw.path()
-                node.style.line(lin2)
-                lin2.plot(`M ${minx},${y1 + s1} L ${maxx},${y1 + s1}`)
-                node._lines.push(lin2)
-                style && style(lin2, node)
-            }
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
        } else {
-            // 非根节点
-            let y1 = top + height
-            let maxy = -Infinity
-            let x2 = node.left + node.width * 0.3
-            node.children.forEach((item, index) => {
-                // 为了适配自定义位置，下面做了各种位置的兼容
-                let y2 = item.top + item.height / 2
-                if (y2 > maxy) {
-                    maxy = y2
-                }
-                // 水平线
-                let path = ''
-                let _left = item.left
-                let _isLeft = item.left + item.width < x2
-                let _isXCenter = false
-                if (_isLeft) {
-                    // 水平位置在父节点左边
-                    _left = item.left + item.width
-                } else if (item.left < x2 && item.left + item.width > x2) {
-                    // 水平位置在父节点之间
-                    _isXCenter = true
-                    y2 = item.top
-                    maxy = y2
-                }   
-                if (y2 > top && y2 < y1) {
-                    // 自定义位置的情况：垂直位置节点在父节点之间
-                    path = `M ${_isLeft ? node.left : node.left + node.width},${y2} L ${_left},${y2}`
-                } else if (y2 < y1) {
-                    // 自定义位置的情况：垂直位置节点在父节点上面
-                    if (_isXCenter) {
-                        y2 = item.top + item.height
-                        _left = x2
-                    }
-                    path = `M ${x2},${top} L ${x2},${y2} L ${_left},${y2}`
-                } else {
-                    if (_isXCenter) {
-                        _left = x2
-                    }
-                    path = `M ${x2},${y2} L ${_left},${y2}`
-                }
-                lines[index].plot(path)
-                style && style(lines[index], item)
+          // 非根节点
+          if (parent._node.isRoot) {
+            newNode.top =
+              parent._node.top +
+              parent._node.height +
+              this.getMarginX(layerIndex)
+          }
+        }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        if (isRoot) {
+          let len = cur.data.expand === false ? 0 : cur._node.children.length
+          cur._node.childrenAreaWidth = len
+            ? cur._node.children.reduce((h, item) => {
+                return h + item.width
+              }, 0) +
+              (len + 1) * this.getMarginX(layerIndex + 1)
+            : 0
+        }
+      },
+      true,
+      0
+    )
+  }
+
+  //  遍历节点树计算节点的left、top
+  computedLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginX = this.getMarginX(layerIndex + 1)
+          let marginY = this.getMarginY(layerIndex + 1)
+          if (isRoot) {
+            let left = node.left + node.width / 2 - node.childrenAreaWidth / 2
+            let totalLeft = left + marginX
+            node.children.forEach(cur => {
+              cur.left = totalLeft
+              totalLeft += cur.width + marginX
            })
-            // 竖线
-            if (len > 0) {
-                let lin2 = this.draw.path()
-                expandBtnSize = len > 0 ? expandBtnSize : 0
-                node.style.line(lin2)
-                if (maxy < y1 + expandBtnSize) {
-                    lin2.hide()
-                } else {
-                    lin2.plot(`M ${x2},${y1 + expandBtnSize} L ${x2},${maxy}`)
-                    lin2.show()
-                }
-                node._lines.push(lin2)
-                style && style(lin2, node)
-            }
+          } else {
+            let totalTop = node.top + node.height + marginY + node.expandBtnSize
+            node.children.forEach(cur => {
+              cur.left = node.left + node.width * 0.5
+              cur.top = totalTop
+              totalTop += cur.height + marginY + node.expandBtnSize
+            })
+          }
        }
-    }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 19:54:26 
-     * @Desc: 渲染按钮 
-     */
-    renderExpandBtn(node, btn) {
-        let {
-            width,
-            height,
-            expandBtnSize,
-            isRoot
-        } = node
-        if (!isRoot) {
-            let {
-                translateX,
-                translateY
-            } = btn.transform()
-            btn.translate(width * 0.3 - expandBtnSize / 2 - translateX, height + expandBtnSize / 2 - translateY)
+  //  调整节点left、top
+  adjustLeftTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
        }
-    }
+        // 调整left
+        if (parent && parent.isRoot) {
+          let areaWidth = this.getNodeAreaWidth(node)
+          let difference = areaWidth - node.width
+          if (difference > 0) {
+            this.updateBrothersLeft(node, difference / 2)
+          }
+        }
+        // 调整top
+        let len = node.children.length
+        if (parent && !parent.isRoot && len > 0) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          let totalHeight =
+            node.children.reduce((h, item) => {
+              return h + item.height
+            }, 0) +
+            (len + 1) * marginY +
+            len * node.expandBtnSize
+          this.updateBrothersTop(node, totalHeight)
+        }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-30 08:30:35 
-     * @Desc: 创建概要节点 
-     */
-    renderGeneralization(node, gLine, gNode) {
-        let { top, bottom, right, generalizationLineMargin, generalizationNodeMargin } = this.getNodeBoundaries(node, 'h')
-        let x1 = right + generalizationLineMargin
-        let y1 = top
-        let x2 = right + generalizationLineMargin
-        let y2 = bottom
-        let cx = x1 + 20
-        let cy = y1 + (y2 - y1) / 2
-        let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
-        gLine.plot(path)
-        gNode.left = right + generalizationNodeMargin
-        gNode.top = top + (bottom - top - gNode.height) / 2
+  //  递归计算节点的宽度
+  getNodeAreaWidth(node) {
+    let widthArr = []
+    let loop = (node, width) => {
+      if (node.children.length) {
+        width += node.width / 2
+        node.children.forEach(item => {
+          loop(item, width)
+        })
+      } else {
+        width += node.width
+        widthArr.push(width)
+      }
    }
+    loop(node, 0)
+    return Math.max(...widthArr)
+  }
+
+  //  调整兄弟节点的left
+  updateBrothersLeft(node, addWidth) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      // 存在大于一个节点时，第一个或最后一个节点自身也需要移动，否则两边不对称
+      if (
+        (index === 0 || index === childrenList.length - 1) &&
+        childrenList.length > 1
+      ) {
+        let _offset = index === 0 ? -addWidth : addWidth
+        node.left += _offset
+        if (
+          node.children &&
+          node.children.length &&
+          !node.hasCustomPosition()
+        ) {
+          this.updateChildren(node.children, 'left', _offset)
+        }
+      }
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        if (_index < index) {
+          // 左边的节点往左移
+          _offset = -addWidth
+        } else if (_index > index) {
+          // 右边的节点往右移
+          _offset = addWidth
+        }
+        item.left += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'left', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersLeft(node.parent, addWidth)
+    }
+  }
+
+  //  调整兄弟节点的top
+  updateBrothersTop(node, addHeight) {
+    if (node.parent && !node.parent.isRoot) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 下面的节点往下移
+        if (_index > index) {
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothersTop(node.parent, addHeight)
+    }
+  }
+
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let len = node.children.length
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    if (node.isRoot) {
+      // 根节点
+      let x1 = left + width / 2
+      let y1 = top + height
+      let s1 = marginX * 0.7
+      let minx = Infinity
+      let maxx = -Infinity
+      node.children.forEach((item, index) => {
+        let x2 = item.left + item.width / 2
+        let y2 = item.top
+        if (x2 < minx) {
+          minx = x2
+        }
+        if (x2 > maxx) {
+          maxx = x2
+        }
+        // 节点使用横线风格，需要额外渲染横线
+        let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+          ? ` L ${item.left},${y2} L ${item.left + item.width},${y2}`
+          : ''
+        let path =
+          `M ${x2},${y1 + s1} L ${x2},${y1 + s1 > y2 ? y2 + item.height : y2}` +
+          nodeUseLineStylePath
+        // 竖线
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      })
+      minx = Math.min(minx, x1)
+      maxx = Math.max(maxx, x1)
+      // 父节点的竖线
+      let line1 = this.draw.path()
+      node.style.line(line1)
+      line1.plot(`M ${x1},${y1} L ${x1},${y1 + s1}`)
+      node._lines.push(line1)
+      style && style(line1, node)
+      // 水平线
+      if (len > 0) {
+        let lin2 = this.draw.path()
+        node.style.line(lin2)
+        lin2.plot(`M ${minx},${y1 + s1} L ${maxx},${y1 + s1}`)
+        node._lines.push(lin2)
+        style && style(lin2, node)
+      }
+    } else {
+      // 非根节点
+      let y1 = top + height
+      let maxy = -Infinity
+      let x2 = node.left + node.width * 0.3
+      node.children.forEach((item, index) => {
+        // 为了适配自定义位置，下面做了各种位置的兼容
+        let y2 = item.top + item.height / 2
+        if (y2 > maxy) {
+          maxy = y2
+        }
+        // 水平线
+        let path = ''
+        let _left = item.left
+        let _isLeft = item.left + item.width < x2
+        let _isXCenter = false
+        if (_isLeft) {
+          // 水平位置在父节点左边
+          _left = item.left + item.width
+        } else if (item.left < x2 && item.left + item.width > x2) {
+          // 水平位置在父节点之间
+          _isXCenter = true
+          y2 = item.top
+          maxy = y2
+        }
+        if (y2 > top && y2 < y1) {
+          // 自定义位置的情况：垂直位置节点在父节点之间
+          path = `M ${
+            _isLeft ? node.left : node.left + node.width
+          },${y2} L ${_left},${y2}`
+        } else if (y2 < y1) {
+          // 自定义位置的情况：垂直位置节点在父节点上面
+          if (_isXCenter) {
+            y2 = item.top + item.height
+            _left = x2
+          }
+          path = `M ${x2},${top} L ${x2},${y2} L ${_left},${y2}`
+        } else {
+          if (_isXCenter) {
+            _left = x2
+          }
+          path = `M ${x2},${y2} L ${_left},${y2}`
+        }
+        // 节点使用横线风格，需要额外渲染横线
+        let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+          ? ` L ${_left},${y2 - item.height / 2} L ${_left},${
+              y2 + item.height / 2
+            }`
+          : ''
+        path += nodeUseLineStylePath
+        lines[index].plot(path)
+        style && style(lines[index], item)
+      })
+      // 竖线
+      if (len > 0) {
+        let lin2 = this.draw.path()
+        expandBtnSize = len > 0 ? expandBtnSize : 0
+        node.style.line(lin2)
+        if (maxy < y1 + expandBtnSize) {
+          lin2.hide()
+        } else {
+          lin2.plot(`M ${x2},${y1 + expandBtnSize} L ${x2},${maxy}`)
+          lin2.show()
+        }
+        node._lines.push(lin2)
+        style && style(lin2, node)
+      }
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize, isRoot } = node
+    if (!isRoot) {
+      let { translateX, translateY } = btn.transform()
+      btn.translate(
+        width * 0.3 - expandBtnSize / 2 - translateX,
+        height + expandBtnSize / 2 - translateY
+      )
+    }
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
 }

-export default CatalogOrganization
+export default CatalogOrganization
--- a/simple-mind-map/src/layouts/LogicalStructure.js
+++ b/simple-mind-map/src/layouts/LogicalStructure.js
@@ -1,287 +1,276 @@
-import Base from './Base';
-import {
-    walk,
-    asyncRun
-} from '../utils'
+import Base from './Base'
+import { walk, asyncRun } from '../utils'

-/** 
- * @Author: 王林 
- * @Date: 2021-04-12 22:25:58 
- * @Desc: 逻辑结构图 
- */
+//  逻辑结构图
 class LogicalStructure extends Base {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:26:31 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        super(opt)
-    }
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-06 14:04:20 
-     * @Desc: 布局
-     */
-    doLayout(callback) {
-        let task = [() => {
-            this.computedBaseValue()
-        }, () => {
-            this.computedTopValue()
-        }, () => {
-            this.adjustTopValue()
-        }, () => {
-            callback(this.root)
-        }]
-        asyncRun(task)
-    }
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedTopValue()
+      },
+      () => {
+        this.adjustTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:49:32 
-     * @Desc: 遍历数据计算节点的left、width、height
-     */
-    computedBaseValue() {
-        walk(this.renderer.renderTree, null, (cur, parent, isRoot, layerIndex) => {
-            let newNode = this.createNode(cur, parent, isRoot, layerIndex)
-            // 根节点定位在画布中心位置
-            if (isRoot) {
-                this.setNodeCenter(newNode)
-            } else {
-                // 非根节点
-                // 定位到父节点右侧
-                newNode.left = parent._node.left + parent._node.width + this.getMarginX(layerIndex)
-            }
-            if (!cur.data.expand) {
-                return true;
-            }
-        }, (cur, parent, isRoot, layerIndex) => {
-            // 返回时计算节点的areaHeight，也就是子节点所占的高度之和，包括外边距
-            let len = cur.data.expand === false ? 0 : cur._node.children.length
-            cur._node.childrenAreaHeight = len ? cur._node.children.reduce((h, item) => {
-                return h + item.height
-            }, 0) + (len + 1) * this.getMarginY(layerIndex + 1) : 0
-        }, true, 0)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:59:25 
-     * @Desc: 遍历节点树计算节点的top 
-     */
-    computedTopValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (node.nodeData.data.expand && node.children && node.children.length) {
-                let marginY = this.getMarginY(layerIndex + 1)
-                // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
-                let top = node.top + node.height / 2 - node.childrenAreaHeight / 2
-                let totalTop = top + marginY
-                node.children.forEach((cur) => {
-                    cur.top = totalTop
-                    totalTop += cur.height + marginY
-                })
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 10:04:05 
-     * @Desc: 调整节点top 
-     */
-    adjustTopValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (!node.nodeData.data.expand) {
-                return;
-            }
-            // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
-            let difference = node.childrenAreaHeight - this.getMarginY(layerIndex + 1) * 2 - node.height
-            if (difference > 0) {
-                this.updateBrothers(node, difference / 2)
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:26:03 
-     * @Desc: 更新兄弟节点的top
-     */
-    updateBrothers(node, addHeight) {
-        if (node.parent) {
-            let childrenList = node.parent.children
-            let index = childrenList.findIndex((item) => {
-                return item === node
-            })
-            childrenList.forEach((item, _index) => {
-                if (item === node || item.hasCustomPosition()) {// 适配自定义位置
-                    return
-                }
-                let _offset = 0
-                // 上面的节点往上移
-                if (_index < index) {
-                    _offset = -addHeight
-                } else if (_index > index) { // 下面的节点往下移
-                    _offset = addHeight
-                }
-                item.top += _offset
-                // 同步更新子节点的位置
-                if (item.children && item.children.length) {
-                    this.updateChildren(item.children, 'top', _offset)
-                }
-            })
-            // 更新父节点的位置
-            this.updateBrothers(node.parent, addHeight)
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 14:42:48 
-     * @Desc: 绘制连线，连接该节点到其子节点
-     */
-    renderLine(node, lines, style, lineStyle) {
-        if (lineStyle === 'curve') {
-            this.renderLineCurve(node, lines, style)
-        } else if (lineStyle === 'direct') {
-            this.renderLineDirect(node, lines, style)
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
        } else {
-            this.renderLineStraight(node, lines, style)
+          // 非根节点
+          // 定位到父节点右侧
+          newNode.left =
+            parent._node.left + parent._node.width + this.getMarginX(layerIndex)
        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:17:30 
-     * @Desc: 直线风格连线 
-     */
-    renderLineStraight(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+        if (!cur.data.expand) {
+          return true
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        let marginX = this.getMarginX(node.layerIndex + 1)
-        let s1 = (marginX - expandBtnSize) * 0.6
-        node.children.forEach((item, index) => {
-            let x1 = node.layerIndex === 0 ? left + width : left + width + expandBtnSize
-            let y1 = top + height / 2
-            let x2 = item.left
-            let y2 = item.top + item.height / 2
-            let path = `M ${x1},${y1} L ${x1 + s1},${y1} L ${x1 + s1},${y2} L ${x2},${y2}`
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的areaHeight，也就是子节点所占的高度之和，包括外边距
+        let len = cur.data.expand === false ? 0 : cur._node.children.length
+        cur._node.childrenAreaHeight = len
+          ? cur._node.children.reduce((h, item) => {
+              return h + item.height
+            }, 0) +
+            (len + 1) * this.getMarginY(layerIndex + 1)
+          : 0
+      },
+      true,
+      0
+    )
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:34:41 
-     * @Desc: 直连风格 
-     */
-    renderLineDirect(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+  //  遍历节点树计算节点的top
+  computedTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
+          let top = node.top + node.height / 2 - node.childrenAreaHeight / 2
+          let totalTop = top + marginY
+          node.children.forEach(cur => {
+            cur.top = totalTop
+            totalTop += cur.height + marginY
+          })
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        node.children.forEach((item, index) => {
-            let x1 = node.layerIndex === 0 ? left + width / 2 : left + width + expandBtnSize
-            let y1 = top + height / 2
-            let x2 = item.left
-            let y2 = item.top + item.height / 2
-            let path = `M ${x1},${y1} L ${x2},${y2}`
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:17:43 
-     * @Desc: 曲线风格连线 
-     */
-    renderLineCurve(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+  //  调整节点top
+  adjustTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        node.children.forEach((item, index) => {
-            let x1 = node.layerIndex === 0 ? left + width / 2 : left + width + expandBtnSize
-            let y1 = top + height / 2
-            let x2 = item.left
-            let y2 = item.top + item.height / 2
-            let path = ''
-            if (node.isRoot) {
-                path = this.quadraticCurvePath(x1, y1, x2, y2)
-            } else {
-                path = this.cubicBezierPath(x1, y1, x2, y2)
-            }
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
+        // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
+        let difference =
+          node.childrenAreaHeight -
+          this.getMarginY(layerIndex + 1) * 2 -
+          node.height
+        if (difference > 0) {
+          this.updateBrothers(node, difference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 19:54:26 
-     * @Desc: 渲染按钮 
-     */
-    renderExpandBtn(node, btn) {
-        let {
-            width,
-            height
-        } = node
-        let {
-            translateX,
-            translateY
-        } = btn.transform()
-        btn.translate(width - translateX, height / 2 - translateY)
+  //  更新兄弟节点的top
+  updateBrothers(node, addHeight) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item === node || item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 上面的节点往上移
+        if (_index < index) {
+          _offset = -addHeight
+        } else if (_index > index) {
+          // 下面的节点往下移
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, addHeight)
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-30 08:30:35 
-     * @Desc: 创建概要节点 
-     */
-    renderGeneralization(node, gLine, gNode) {
-        let { top, bottom, right, generalizationLineMargin, generalizationNodeMargin } = this.getNodeBoundaries(node, 'h')
-        let x1 = right + generalizationLineMargin
-        let y1 = top
-        let x2 = right + generalizationLineMargin
-        let y2 = bottom
-        let cx = x1 + 20
-        let cy = y1 + (y2 - y1) / 2
-        let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
-        gLine.plot(path)
-        gNode.left = right + generalizationNodeMargin
-        gNode.top = top + (bottom - top - gNode.height) / 2
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'curve') {
+      this.renderLineCurve(node, lines, style)
+    } else if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
    }
+  }
+
+  //  直线风格连线
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    let s1 = (marginX - expandBtnSize) * 0.6
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0 ? left + width : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.left
+      let y2 = item.top + item.height / 2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStyleOffset = nodeUseLineStyle
+        ? item.width
+        : 0
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      let path = `M ${x1},${y1} L ${x1 + s1},${y1} L ${x1 + s1},${y2} L ${
+        x2 + nodeUseLineStyleOffset
+      },${y2}`
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  直连风格
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0 ? left + width / 2 : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.left
+      let y2 = item.top + item.height / 2
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = nodeUseLineStyle
+        ? ` L ${item.left + item.width},${y2}`
+        : ''
+      let path = `M ${x1},${y1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  曲线风格连线
+  renderLineCurve(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0 ? left + width / 2 : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.left
+      let y2 = item.top + item.height / 2
+      let path = ''
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = nodeUseLineStyle
+        ? ` L ${item.left + item.width},${y2}`
+        : ''
+      if (node.isRoot) {
+        path = this.quadraticCurvePath(x1, y1, x2, y2) + nodeUseLineStylePath
+      } else {
+        path = this.cubicBezierPath(x1, y1, x2, y2) + nodeUseLineStylePath
+      }
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height } = node
+    let { translateX, translateY } = btn.transform()
+    // 节点使用横线风格，需要调整展开收起按钮位置
+    let nodeUseLineStyleOffset = this.mindMap.themeConfig.nodeUseLineStyle
+      ? height / 2
+      : 0
+    btn.translate(
+      width - translateX,
+      height / 2 - translateY + nodeUseLineStyleOffset
+    )
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      top,
+      bottom,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h')
+    let x1 = right + generalizationLineMargin
+    let y1 = top
+    let x2 = right + generalizationLineMargin
+    let y2 = bottom
+    let cx = x1 + 20
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left = right + generalizationNodeMargin
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
 }

-export default LogicalStructure
+export default LogicalStructure
--- a/simple-mind-map/src/layouts/MindMap.js
+++ b/simple-mind-map/src/layouts/MindMap.js
@@ -1,336 +1,348 @@
-import Base from './Base';
-import {
-    walk,
-    asyncRun
-} from '../utils'
+import Base from './Base'
+import { walk, asyncRun } from '../utils'

-/** 
- * @Author: 王林 
- * @Date: 2021-04-12 22:25:58 
- * @Desc: 思维导图 
- * 在逻辑结构图的基础上增加一个变量来记录生长方向，向左还是向右，同时在计算left的时候根据方向来计算、调整top时只考虑同方向的节点即可
- */
+//  思维导图
 class MindMap extends Base {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:26:31 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        super(opt)
-    }
+  //  构造函数
+  // 在逻辑结构图的基础上增加一个变量来记录生长方向，向左还是向右，同时在计算left的时候根据方向来计算、调整top时只考虑同方向的节点即可
+  constructor(opt = {}) {
+    super(opt)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-06 14:04:20 
-     * @Desc: 布局
-     */
-    doLayout(callback) {
-        let task = [() => {
-            this.computedBaseValue()
-        }, () => {
-            this.computedTopValue()
-        }, () => {
-            this.adjustTopValue()
-        }, () => {
-            callback(this.root)
-        }]
-        asyncRun(task)
-    }
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedTopValue()
+      },
+      () => {
+        this.adjustTopValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:49:32 
-     * @Desc: 遍历数据计算节点的left、width、height
-     */
-    computedBaseValue() {
-        walk(this.renderer.renderTree, null, (cur, parent, isRoot, layerIndex, index) => {
-            let newNode = this.createNode(cur, parent, isRoot, layerIndex)
-            // 根节点定位在画布中心位置
-            if (isRoot) {
-                this.setNodeCenter(newNode)
-            } else {
-                // 非根节点
-                // 三级及以下节点以上级为准
-                if (parent._node.dir) {
-                    newNode.dir = parent._node.dir
-                } else { // 节点生长方向
-                    newNode.dir = index % 2 === 0 ? 'right' : 'left'
-                }
-                // 根据生长方向定位到父节点的左侧或右侧
-                newNode.left = newNode.dir === 'right' ? parent._node.left + parent._node.width + this.getMarginX(layerIndex) : parent._node.left - this.getMarginX(layerIndex) - newNode.width
-            }
-            if (!cur.data.expand) {
-                return true;
-            }
-        }, (cur, parent, isRoot, layerIndex) => {
-            // 返回时计算节点的leftChildrenAreaHeight和rightChildrenAreaHeight，也就是左侧和右侧子节点所占的高度之和，包括外边距
-            if (!cur.data.expand) {
-                cur._node.leftChildrenAreaHeight = 0
-                cur._node.rightChildrenAreaHeight = 0
-                return
-            }
-            // 理论上只有根节点是存在两个方向的子节点的，其他节点的子节点一定全都是同方向，但是为了逻辑统一，就不按特殊处理的方式来写了
-            let leftLen = 0
-            let rightLen = 0
-            let leftChildrenAreaHeight = 0
-            let rightChildrenAreaHeight = 0
-            cur._node.children.forEach((item) => {
-                if (item.dir === 'left') {
-                    leftLen++
-                    leftChildrenAreaHeight += item.height
-                } else {
-                    rightLen++
-                    rightChildrenAreaHeight += item.height
-                }
-            })
-            cur._node.leftChildrenAreaHeight = leftChildrenAreaHeight + (leftLen + 1) * this.getMarginY(layerIndex + 1)
-            cur._node.rightChildrenAreaHeight = rightChildrenAreaHeight + (rightLen + 1) * this.getMarginY(layerIndex + 1)
-        }, true, 0)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:59:25 
-     * @Desc: 遍历节点树计算节点的top 
-     */
-    computedTopValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (node.nodeData.data.expand && node.children && node.children.length) {
-                let marginY = this.getMarginY(layerIndex + 1)
-                let baseTop = node.top + node.height / 2 + marginY
-                // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
-                let leftTotalTop = baseTop - node.leftChildrenAreaHeight / 2
-                let rightTotalTop = baseTop - node.rightChildrenAreaHeight / 2
-                node.children.forEach((cur) => {
-                    if (cur.dir === 'left') {
-                        cur.top = leftTotalTop
-                        leftTotalTop += cur.height + marginY
-                    } else {
-                        cur.top = rightTotalTop
-                        rightTotalTop += cur.height + marginY
-                    }
-                })
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 10:04:05 
-     * @Desc: 调整节点top 
-     */
-    adjustTopValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (!node.nodeData.data.expand) {
-                return;
-            }
-            // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
-            let base = this.getMarginY(layerIndex + 1) * 2 + node.height
-            let leftDifference = node.leftChildrenAreaHeight - base
-            let rightDifference = node.rightChildrenAreaHeight - base
-            if (leftDifference > 0 || rightDifference > 0) {
-                this.updateBrothers(node, leftDifference / 2, rightDifference / 2)
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:26:03 
-     * @Desc: 更新兄弟节点的top
-     */
-    updateBrothers(node, leftAddHeight, rightAddHeight) {
-        if (node.parent) {
-            // 过滤出和自己同方向的节点
-            let childrenList = node.parent.children.filter((item) => {
-                return item.dir === node.dir
-            })
-            let index = childrenList.findIndex((item) => {
-                return item === node
-            })
-            childrenList.forEach((item, _index) => {
-                if (item.hasCustomPosition()) {// 适配自定义位置
-                    return
-                }
-                let _offset = 0
-                let addHeight = item.dir === 'left' ? leftAddHeight : rightAddHeight
-                // 上面的节点往上移
-                if (_index < index) {
-                    _offset = -addHeight
-                } else if (_index > index) { // 下面的节点往下移
-                    _offset = addHeight
-                }
-                item.top += _offset
-                // 同步更新子节点的位置
-                if (item.children && item.children.length) {
-                    this.updateChildren(item.children, 'top', _offset)
-                }
-            })
-            // 更新父节点的位置
-            this.updateBrothers(node.parent, leftAddHeight, rightAddHeight)
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 14:42:48 
-     * @Desc: 绘制连线，连接该节点到其子节点
-     */
-    renderLine(node, lines, style, lineStyle) {
-        if (lineStyle === 'curve') {
-            this.renderLineCurve(node, lines, style)
-        } else if (lineStyle === 'direct') {
-            this.renderLineDirect(node, lines, style)
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex, index) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
        } else {
-            this.renderLineStraight(node, lines, style)
+          // 非根节点
+          // 三级及以下节点以上级为准
+          if (parent._node.dir) {
+            newNode.dir = parent._node.dir
+          } else {
+            // 节点生长方向
+            newNode.dir = index % 2 === 0 ? 'right' : 'left'
+          }
+          // 根据生长方向定位到父节点的左侧或右侧
+          newNode.left =
+            newNode.dir === 'right'
+              ? parent._node.left +
+                parent._node.width +
+                this.getMarginX(layerIndex)
+              : parent._node.left - this.getMarginX(layerIndex) - newNode.width
        }
-    }
+        if (!cur.data.expand) {
+          return true
+        }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的leftChildrenAreaHeight和rightChildrenAreaHeight，也就是左侧和右侧子节点所占的高度之和，包括外边距
+        if (!cur.data.expand) {
+          cur._node.leftChildrenAreaHeight = 0
+          cur._node.rightChildrenAreaHeight = 0
+          return
+        }
+        // 理论上只有根节点是存在两个方向的子节点的，其他节点的子节点一定全都是同方向，但是为了逻辑统一，就不按特殊处理的方式来写了
+        let leftLen = 0
+        let rightLen = 0
+        let leftChildrenAreaHeight = 0
+        let rightChildrenAreaHeight = 0
+        cur._node.children.forEach(item => {
+          if (item.dir === 'left') {
+            leftLen++
+            leftChildrenAreaHeight += item.height
+          } else {
+            rightLen++
+            rightChildrenAreaHeight += item.height
+          }
+        })
+        cur._node.leftChildrenAreaHeight =
+          leftChildrenAreaHeight +
+          (leftLen + 1) * this.getMarginY(layerIndex + 1)
+        cur._node.rightChildrenAreaHeight =
+          rightChildrenAreaHeight +
+          (rightLen + 1) * this.getMarginY(layerIndex + 1)
+      },
+      true,
+      0
+    )
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:10:47 
-     * @Desc: 直线风格连线 
-     */
-    renderLineStraight(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
-        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        let marginX = this.getMarginX(node.layerIndex + 1)
-        let s1 = (marginX - expandBtnSize) * 0.6
-        node.children.forEach((item, index) => {
-            let x1 = 0
-            let _s = 0
-            if (item.dir === 'left') {
-                _s = -s1
-                x1 = node.layerIndex === 0 ? left : left - expandBtnSize
+  //  遍历节点树计算节点的top
+  computedTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginY = this.getMarginY(layerIndex + 1)
+          let baseTop = node.top + node.height / 2 + marginY
+          // 第一个子节点的top值 = 该节点中心的top值 - 子节点的高度之和的一半
+          let leftTotalTop = baseTop - node.leftChildrenAreaHeight / 2
+          let rightTotalTop = baseTop - node.rightChildrenAreaHeight / 2
+          node.children.forEach(cur => {
+            if (cur.dir === 'left') {
+              cur.top = leftTotalTop
+              leftTotalTop += cur.height + marginY
            } else {
-                _s = s1
-                x1 = node.layerIndex === 0 ? left + width : left + width + expandBtnSize
+              cur.top = rightTotalTop
+              rightTotalTop += cur.height + marginY
            }
-            let y1 = top + height / 2
-            let x2 = item.dir === 'left' ? item.left + item.width : item.left
-            let y2 = item.top + item.height / 2
-            let path = `M ${x1},${y1} L ${x1 + _s},${y1} L ${x1 + _s},${y2} L ${x2},${y2}` 
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:34:41 
-     * @Desc: 直连风格 
-     */
-     renderLineDirect(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+          })
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        node.children.forEach((item, index) => {
-            let x1 = node.layerIndex === 0 ? left + width / 2 : item.dir === 'left' ? left - expandBtnSize : left + width + expandBtnSize
-            let y1 = top + height / 2
-            let x2 = item.dir === 'left' ? item.left + item.width : item.left
-            let y2 = item.top + item.height / 2
-            let path = `M ${x1},${y1} L ${x2},${y2}`
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:10:56 
-     * @Desc: 曲线风格连线 
-     */
-    renderLineCurve(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+  //  调整节点top
+  adjustTopValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize
-        } = node
-        node.children.forEach((item, index) => {
-            let x1 = node.layerIndex === 0 ? left + width / 2 : item.dir === 'left' ? left - expandBtnSize : left + width + 20
-            let y1 = top + height / 2
-            let x2 = item.dir === 'left' ? item.left + item.width : item.left
-            let y2 = item.top + item.height / 2
-            let path = ''
-            if (node.isRoot) {
-                path = this.quadraticCurvePath(x1, y1, x2, y2)
-            } else {
-                path = this.cubicBezierPath(x1, y1, x2, y2)
-            }
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
+        // 判断子节点所占的高度之和是否大于该节点自身，大于则需要调整位置
+        let base = this.getMarginY(layerIndex + 1) * 2 + node.height
+        let leftDifference = node.leftChildrenAreaHeight - base
+        let rightDifference = node.rightChildrenAreaHeight - base
+        if (leftDifference > 0 || rightDifference > 0) {
+          this.updateBrothers(node, leftDifference / 2, rightDifference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 19:54:26 
-     * @Desc: 渲染按钮 
-     */
-    renderExpandBtn(node, btn) {
-        let {
-            width,
-            height,
-            expandBtnSize
-        } = node
-        let {
-            translateX,
-            translateY
-        } = btn.transform()
-        let x = (node.dir === 'left' ? 0 - expandBtnSize : width) - translateX
-        let y = height / 2 - translateY
-        btn.translate(x, y)
+  //  更新兄弟节点的top
+  updateBrothers(node, leftAddHeight, rightAddHeight) {
+    if (node.parent) {
+      // 过滤出和自己同方向的节点
+      let childrenList = node.parent.children.filter(item => {
+        return item.dir === node.dir
+      })
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        let addHeight = item.dir === 'left' ? leftAddHeight : rightAddHeight
+        // 上面的节点往上移
+        if (_index < index) {
+          _offset = -addHeight
+        } else if (_index > index) {
+          // 下面的节点往下移
+          _offset = addHeight
+        }
+        item.top += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'top', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, leftAddHeight, rightAddHeight)
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-30 08:30:35 
-     * @Desc: 创建概要节点 
-     */
-    renderGeneralization(node, gLine, gNode) {
-        let isLeft = node.dir === 'left'
-        let { top, bottom, left, right, generalizationLineMargin, generalizationNodeMargin } = this.getNodeBoundaries(node, 'h', isLeft)
-        let x = isLeft ? left - generalizationLineMargin : right + generalizationLineMargin
-        let x1 = x
-        let y1 = top
-        let x2 = x
-        let y2 = bottom
-        let cx = x1 + (isLeft ? -20 : 20)
-        let cy = y1 + (y2 - y1) / 2
-        let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
-        gLine.plot(path)
-        gNode.left = x + (isLeft ? -generalizationNodeMargin : generalizationNodeMargin) - (isLeft ? gNode.width : 0)
-        gNode.top = top + (bottom - top - gNode.height) / 2
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'curve') {
+      this.renderLineCurve(node, lines, style)
+    } else if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
    }
+  }
+
+  //  直线风格连线
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    let s1 = (marginX - expandBtnSize) * 0.6
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 = 0
+      let _s = 0
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStyleOffset = nodeUseLineStyle
+        ? item.width
+        : 0
+      if (item.dir === 'left') {
+        _s = -s1
+        x1 = node.layerIndex === 0 ? left : left - expandBtnSize
+        nodeUseLineStyleOffset = -nodeUseLineStyleOffset
+      } else {
+        _s = s1
+        x1 = node.layerIndex === 0 ? left + width : left + width + expandBtnSize
+      }
+      let y1 = top + height / 2
+      let x2 = item.dir === 'left' ? item.left + item.width : item.left
+      let y2 = item.top + item.height / 2
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      let path = `M ${x1},${y1} L ${x1 + _s},${y1} L ${x1 + _s},${y2} L ${
+        x2 + nodeUseLineStyleOffset
+      },${y2}`
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  直连风格
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0
+          ? left + width / 2
+          : item.dir === 'left'
+          ? left - expandBtnSize
+          : left + width + expandBtnSize
+      let y1 = top + height / 2
+      let x2 = item.dir === 'left' ? item.left + item.width : item.left
+      let y2 = item.top + item.height / 2
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = ''
+      if (nodeUseLineStyle) {
+        if (item.dir === 'left') {
+          nodeUseLineStylePath = ` L ${item.left},${y2}`
+        } else {
+          nodeUseLineStylePath = ` L ${item.left + item.width},${y2}`
+        }
+      }
+      let path = `M ${x1},${y1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  曲线风格连线
+  renderLineCurve(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize } = node
+    let nodeUseLineStyle = this.mindMap.themeConfig.nodeUseLineStyle
+    node.children.forEach((item, index) => {
+      let x1 =
+        node.layerIndex === 0
+          ? left + width / 2
+          : item.dir === 'left'
+          ? left - expandBtnSize
+          : left + width + 20
+      let y1 = top + height / 2
+      let x2 = item.dir === 'left' ? item.left + item.width : item.left
+      let y2 = item.top + item.height / 2
+      let path = ''
+      y1 = nodeUseLineStyle && !node.isRoot ? y1 + height / 2 : y1
+      y2 = nodeUseLineStyle ? y2 + item.height / 2 : y2
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = ''
+      if (this.mindMap.themeConfig.nodeUseLineStyle) {
+        if (item.dir === 'left') {
+          nodeUseLineStylePath = ` L ${item.left},${y2}`
+        } else {
+          nodeUseLineStylePath = ` L ${item.left + item.width},${y2}`
+        }
+      }
+      if (node.isRoot) {
+        path = this.quadraticCurvePath(x1, y1, x2, y2) + nodeUseLineStylePath
+      } else {
+        path = this.cubicBezierPath(x1, y1, x2, y2) + nodeUseLineStylePath
+      }
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize } = node
+    let { translateX, translateY } = btn.transform()
+    // 节点使用横线风格，需要调整展开收起按钮位置
+    let nodeUseLineStyleOffset = this.mindMap.themeConfig.nodeUseLineStyle
+      ? height / 2
+      : 0
+    let x = (node.dir === 'left' ? 0 - expandBtnSize : width) - translateX
+    let y = height / 2 - translateY + nodeUseLineStyleOffset
+    btn.translate(x, y)
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let isLeft = node.dir === 'left'
+    let {
+      top,
+      bottom,
+      left,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'h', isLeft)
+    let x = isLeft
+      ? left - generalizationLineMargin
+      : right + generalizationLineMargin
+    let x1 = x
+    let y1 = top
+    let x2 = x
+    let y2 = bottom
+    let cx = x1 + (isLeft ? -20 : 20)
+    let cy = y1 + (y2 - y1) / 2
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.left =
+      x +
+      (isLeft ? -generalizationNodeMargin : generalizationNodeMargin) -
+      (isLeft ? gNode.width : 0)
+    gNode.top = top + (bottom - top - gNode.height) / 2
+  }
 }

-export default MindMap
+export default MindMap
--- a/simple-mind-map/src/layouts/OrganizationStructure.js
+++ b/simple-mind-map/src/layouts/OrganizationStructure.js
@@ -1,280 +1,257 @@
-import Base from './Base';
-import {
-    walk,
-    asyncRun
-} from '../utils'
+import Base from './Base'
+import { walk, asyncRun } from '../utils'

-/** 
- * @Author: 王林 
- * @Date: 2021-04-12 22:25:58 
- * @Desc: 组织结构图
- * 和逻辑结构图基本一样，只是方向变成向下生长，所以先计算节点的top，后计算节点的left、最后调整节点的left即可
- */
+//  组织结构图
+// 和逻辑结构图基本一样，只是方向变成向下生长，所以先计算节点的top，后计算节点的left、最后调整节点的left即可
 class OrganizationStructure extends Base {
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-12 22:26:31 
-     * @Desc: 构造函数 
-     */
-    constructor(opt = {}) {
-        super(opt)
-    }
+  //  构造函数
+  constructor(opt = {}) {
+    super(opt)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-06 14:04:20 
-     * @Desc: 布局
-     */
-    doLayout(callback) {
-        let task = [() => {
-            this.computedBaseValue()
-        }, () => {
-            this.computedLeftValue()
-        }, () => {
-            this.adjustLeftValue()
-        }, () => {
-            callback(this.root)
-        }]
-        asyncRun(task)
-    }
+  //  布局
+  doLayout(callback) {
+    let task = [
+      () => {
+        this.computedBaseValue()
+      },
+      () => {
+        this.computedLeftValue()
+      },
+      () => {
+        this.adjustLeftValue()
+      },
+      () => {
+        callback(this.root)
+      }
+    ]
+    asyncRun(task)
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:49:32 
-     * @Desc: 遍历数据计算节点的left、width、height
-     */
-    computedBaseValue() {
-        walk(this.renderer.renderTree, null, (cur, parent, isRoot, layerIndex) => {
-            let newNode = this.createNode(cur, parent, isRoot, layerIndex)
-            // 根节点定位在画布中心位置
-            if (isRoot) {
-                this.setNodeCenter(newNode)
-            } else {
-                // 非根节点
-                // 定位到父节点下方
-                newNode.top = parent._node.top + parent._node.height + this.getMarginX(layerIndex)
-            }
-            if (!cur.data.expand) {
-                return true;
-            }
-        }, (cur, parent, isRoot, layerIndex) => {
-            // 返回时计算节点的areaWidth，也就是子节点所占的宽度之和，包括外边距
-            let len = cur.data.expand === false ? 0 : cur._node.children.length
-            cur._node.childrenAreaWidth = len ? cur._node.children.reduce((h, item) => {
-                return h + item.width
-            }, 0) + (len + 1) * this.getMarginY(layerIndex + 1) : 0
-        }, true, 0)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 09:59:25 
-     * @Desc: 遍历节点树计算节点的left
-     */
-    computedLeftValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (node.nodeData.data.expand && node.children && node.children.length) {
-                let marginX = this.getMarginY(layerIndex + 1)
-                // 第一个子节点的left值 = 该节点中心的left值 - 子节点的宽度之和的一半
-                let left = node.left + node.width / 2 - node.childrenAreaWidth / 2
-                let totalLeft = left + marginX
-                node.children.forEach((cur) => {
-                    cur.left = totalLeft
-                    totalLeft += cur.width + marginX
-                })
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-08 10:04:05 
-     * @Desc: 调整节点left
-     */
-    adjustLeftValue() {
-        walk(this.root, null, (node, parent, isRoot, layerIndex) => {
-            if (!node.nodeData.data.expand) {
-                return;
-            }
-            // 判断子节点所占的宽度之和是否大于该节点自身，大于则需要调整位置
-            let difference = node.childrenAreaWidth - this.getMarginY(layerIndex + 1) * 2 - node.width
-            if (difference > 0) {
-                this.updateBrothers(node, difference / 2)
-            }
-        }, null, true)
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2021-04-07 14:26:03 
-     * @Desc: 更新兄弟节点的left
-     */
-    updateBrothers(node, addWidth) {
-        if (node.parent) {
-            let childrenList = node.parent.children
-            let index = childrenList.findIndex((item) => {
-                return item === node
-            })
-            childrenList.forEach((item, _index) => {
-                if (item.hasCustomPosition()) {// 适配自定义位置
-                    return
-                }
-                let _offset = 0
-                // 上面的节点往上移
-                if (_index < index) {
-                    _offset = -addWidth
-                } else if (_index > index) { // 下面的节点往下移
-                    _offset = addWidth
-                }
-                item.left += _offset
-                // 同步更新子节点的位置
-                if (item.children && item.children.length) {
-                    this.updateChildren(item.children, 'left', _offset)
-                }
-            })
-            // 更新父节点的位置
-            this.updateBrothers(node.parent, addWidth)
-        }
-    }
-
-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 14:42:48 
-     * @Desc: 绘制连线，连接该节点到其子节点
-     */
-    renderLine(node, lines, style, lineStyle) {
-        if (lineStyle === 'direct') {
-            this.renderLineDirect(node, lines, style)
+  //  遍历数据计算节点的left、width、height
+  computedBaseValue() {
+    walk(
+      this.renderer.renderTree,
+      null,
+      (cur, parent, isRoot, layerIndex) => {
+        let newNode = this.createNode(cur, parent, isRoot, layerIndex)
+        // 根节点定位在画布中心位置
+        if (isRoot) {
+          this.setNodeCenter(newNode)
        } else {
-            this.renderLineStraight(node, lines, style)
+          // 非根节点
+          // 定位到父节点下方
+          newNode.top =
+            parent._node.top + parent._node.height + this.getMarginX(layerIndex)
        }
-    }
-
-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:34:41 
-     * @Desc: 直连风格 
-     */
-     renderLineDirect(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+        if (!cur.data.expand) {
+          return true
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-        } = node
-        let x1 = left + width / 2
-        let y1 = top + height
-        node.children.forEach((item, index) => {
-            let x2 = item.left + item.width / 2
-            let y2 = item.top
-            let path = `M ${x1},${y1} L ${x2},${y2}`
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-    }
+      },
+      (cur, parent, isRoot, layerIndex) => {
+        // 返回时计算节点的areaWidth，也就是子节点所占的宽度之和，包括外边距
+        let len = cur.data.expand === false ? 0 : cur._node.children.length
+        cur._node.childrenAreaWidth = len
+          ? cur._node.children.reduce((h, item) => {
+              return h + item.width
+            }, 0) +
+            (len + 1) * this.getMarginY(layerIndex + 1)
+          : 0
+      },
+      true,
+      0
+    )
+  }

-    /** 
-     * javascript comment 
-     * @Author: 王林25 
-     * @Date: 2022-09-30 14:39:07 
-     * @Desc: 直线风格连线 
-     */
-    renderLineStraight(node, lines, style) {
-        if (node.children.length <= 0) {
-            return [];
+  //  遍历节点树计算节点的left
+  computedLeftValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (
+          node.nodeData.data.expand &&
+          node.children &&
+          node.children.length
+        ) {
+          let marginX = this.getMarginY(layerIndex + 1)
+          // 第一个子节点的left值 = 该节点中心的left值 - 子节点的宽度之和的一半
+          let left = node.left + node.width / 2 - node.childrenAreaWidth / 2
+          let totalLeft = left + marginX
+          node.children.forEach(cur => {
+            cur.left = totalLeft
+            totalLeft += cur.width + marginX
+          })
        }
-        let {
-            left,
-            top,
-            width,
-            height,
-            expandBtnSize,
-            isRoot
-        } = node
-        let x1 = left + width / 2
-        let y1 = top + height
-        let marginX = this.getMarginX(node.layerIndex + 1)
-        let s1 = marginX * 0.7
-        let minx = Infinity
-        let maxx = -Infinity
-        let len = node.children.length
-        node.children.forEach((item, index) => {
-            let x2 = item.left + item.width / 2
-            let y2 = y1 + s1 > item.top ? item.top + item.height : item.top
-            if (x2 < minx) {
-                minx = x2
-            }
-            if (x2 > maxx) {
-                maxx = x2
-            }
-            let path = `M ${x2},${y1 + s1} L ${x2},${y2}`
-            lines[index].plot(path)
-            style && style(lines[index], item)
-        })
-        minx = Math.min(x1, minx)
-        maxx = Math.max(x1, maxx)
-        // 父节点的竖线
-        let line1 = this.draw.path()
-        node.style.line(line1)
-        expandBtnSize = len > 0 && !isRoot ? expandBtnSize : 0
-        line1.plot(`M ${x1},${y1 + expandBtnSize} L ${x1},${y1 + s1}`)
-        node._lines.push(line1)
-        style && style(line1, node)
-        // 水平线
-        if (len > 0) {
-            let lin2 = this.draw.path()
-            node.style.line(lin2)
-            lin2.plot(`M ${minx},${y1 + s1} L ${maxx},${y1 + s1}`)
-            node._lines.push(lin2)
-            style && style(lin2, node)
+      },
+      null,
+      true
+    )
+  }
+
+  //  调整节点left
+  adjustLeftValue() {
+    walk(
+      this.root,
+      null,
+      (node, parent, isRoot, layerIndex) => {
+        if (!node.nodeData.data.expand) {
+          return
        }
-    }
+        // 判断子节点所占的宽度之和是否大于该节点自身，大于则需要调整位置
+        let difference =
+          node.childrenAreaWidth -
+          this.getMarginY(layerIndex + 1) * 2 -
+          node.width
+        if (difference > 0) {
+          this.updateBrothers(node, difference / 2)
+        }
+      },
+      null,
+      true
+    )
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2021-04-11 19:54:26 
-     * @Desc: 渲染按钮 
-     */
-    renderExpandBtn(node, btn) {
-        let {
-            width,
-            height,
-            expandBtnSize
-        } = node
-        let {
-            translateX,
-            translateY
-        } = btn.transform()
-        btn.translate(width / 2 - expandBtnSize / 2 - translateX, height + expandBtnSize / 2 - translateY)
+  //  更新兄弟节点的left
+  updateBrothers(node, addWidth) {
+    if (node.parent) {
+      let childrenList = node.parent.children
+      let index = childrenList.findIndex(item => {
+        return item === node
+      })
+      childrenList.forEach((item, _index) => {
+        if (item.hasCustomPosition()) {
+          // 适配自定义位置
+          return
+        }
+        let _offset = 0
+        // 上面的节点往上移
+        if (_index < index) {
+          _offset = -addWidth
+        } else if (_index > index) {
+          // 下面的节点往下移
+          _offset = addWidth
+        }
+        item.left += _offset
+        // 同步更新子节点的位置
+        if (item.children && item.children.length) {
+          this.updateChildren(item.children, 'left', _offset)
+        }
+      })
+      // 更新父节点的位置
+      this.updateBrothers(node.parent, addWidth)
    }
+  }

-    /** 
-     * @Author: 王林 
-     * @Date: 2022-07-30 08:30:35 
-     * @Desc: 创建概要节点 
-     */
-    renderGeneralization(node, gLine, gNode) {
-        let { bottom, left, right, generalizationLineMargin, generalizationNodeMargin } = this.getNodeBoundaries(node, 'v')
-        let x1 = left
-        let y1 = bottom + generalizationLineMargin
-        let x2 = right
-        let y2 = bottom + generalizationLineMargin
-        let cx = x1 + (x2 - x1) / 2
-        let cy = y1 + 20
-        let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
-        gLine.plot(path)
-        gNode.top = bottom + generalizationNodeMargin
-        gNode.left = left + (right - left - gNode.width) / 2
+  //  绘制连线，连接该节点到其子节点
+  renderLine(node, lines, style, lineStyle) {
+    if (lineStyle === 'direct') {
+      this.renderLineDirect(node, lines, style)
+    } else {
+      this.renderLineStraight(node, lines, style)
    }
+  }
+
+  //  直连风格
+  renderLineDirect(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height } = node
+    let x1 = left + width / 2
+    let y1 = top + height
+    node.children.forEach((item, index) => {
+      let x2 = item.left + item.width / 2
+      let y2 = item.top
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+        ? ` L ${item.left},${y2} L ${item.left + item.width},${y2}`
+        : ''
+      let path = `M ${x1},${y1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+  }
+
+  //  直线风格连线
+  renderLineStraight(node, lines, style) {
+    if (node.children.length <= 0) {
+      return []
+    }
+    let { left, top, width, height, expandBtnSize, isRoot } = node
+    let x1 = left + width / 2
+    let y1 = top + height
+    let marginX = this.getMarginX(node.layerIndex + 1)
+    let s1 = marginX * 0.7
+    let minx = Infinity
+    let maxx = -Infinity
+    let len = node.children.length
+    node.children.forEach((item, index) => {
+      let x2 = item.left + item.width / 2
+      let y2 = y1 + s1 > item.top ? item.top + item.height : item.top
+      if (x2 < minx) {
+        minx = x2
+      }
+      if (x2 > maxx) {
+        maxx = x2
+      }
+      // 节点使用横线风格，需要额外渲染横线
+      let nodeUseLineStylePath = this.mindMap.themeConfig.nodeUseLineStyle
+        ? ` L ${item.left},${y2} L ${item.left + item.width},${y2}`
+        : ''
+      let path = `M ${x2},${y1 + s1} L ${x2},${y2}` + nodeUseLineStylePath
+      lines[index].plot(path)
+      style && style(lines[index], item)
+    })
+    minx = Math.min(x1, minx)
+    maxx = Math.max(x1, maxx)
+    // 父节点的竖线
+    let line1 = this.draw.path()
+    node.style.line(line1)
+    expandBtnSize = len > 0 && !isRoot ? expandBtnSize : 0
+    line1.plot(`M ${x1},${y1 + expandBtnSize} L ${x1},${y1 + s1}`)
+    node._lines.push(line1)
+    style && style(line1, node)
+    // 水平线
+    if (len > 0) {
+      let lin2 = this.draw.path()
+      node.style.line(lin2)
+      lin2.plot(`M ${minx},${y1 + s1} L ${maxx},${y1 + s1}`)
+      node._lines.push(lin2)
+      style && style(lin2, node)
+    }
+  }
+
+  //  渲染按钮
+  renderExpandBtn(node, btn) {
+    let { width, height, expandBtnSize } = node
+    let { translateX, translateY } = btn.transform()
+    btn.translate(
+      width / 2 - expandBtnSize / 2 - translateX,
+      height + expandBtnSize / 2 - translateY
+    )
+  }
+
+  //  创建概要节点
+  renderGeneralization(node, gLine, gNode) {
+    let {
+      bottom,
+      left,
+      right,
+      generalizationLineMargin,
+      generalizationNodeMargin
+    } = this.getNodeBoundaries(node, 'v')
+    let x1 = left
+    let y1 = bottom + generalizationLineMargin
+    let x2 = right
+    let y2 = bottom + generalizationLineMargin
+    let cx = x1 + (x2 - x1) / 2
+    let cy = y1 + 20
+    let path = `M ${x1},${y1} Q ${cx},${cy} ${x2},${y2}`
+    gLine.plot(path)
+    gNode.top = bottom + generalizationNodeMargin
+    gNode.left = left + (right - left - gNode.width) / 2
+  }
 }

-export default OrganizationStructure
+export default OrganizationStructure
--- a/simple-mind-map/src/parse/markdown.js
+++ b/simple-mind-map/src/parse/markdown.js
@@ -0,0 +1,7 @@
+import { transformToMarkdown } from './toMarkdown'
+import { transformMarkdownTo } from './markdownTo'
+
+export default {
+  transformToMarkdown,
+  transformMarkdownTo
+}
--- a/simple-mind-map/src/parse/markdownTo.js
+++ b/simple-mind-map/src/parse/markdownTo.js
@@ -0,0 +1,98 @@
+import { fromMarkdown } from 'mdast-util-from-markdown'
+
+// 处理list的情况
+const handleList = node => {
+  let list = []
+  let walk = (arr, newArr) => {
+    for (let i = 0; i < arr.length; i++) {
+      let cur = arr[i]
+      let node = {}
+      node.data = {
+        // 节点内容
+        text: cur.children[0].children[0].value
+      }
+      node.children = []
+      newArr.push(node)
+      if (cur.children.length > 1) {
+        for (let j = 1; j < cur.children.length; j++) {
+          let cur2 = cur.children[j]
+          if (cur2.type === 'list') {
+            walk(cur2.children, node.children)
+          }
+        }
+      }
+    }
+  }
+  walk(node.children, list)
+  return list
+}
+
+// 将markdown转换成节点树
+export const transformMarkdownTo = async md => {
+  const tree = fromMarkdown(md)
+  let root = {
+    children: []
+  }
+  let childrenQueue = [root.children]
+  let currentChildren = root.children
+  let depthQueue = [-1]
+  let currentDepth = -1
+  for (let i = 0; i < tree.children.length; i++) {
+    let cur = tree.children[i]
+    if (cur.type === 'heading') {
+      if (!cur.children[0]) continue
+      // 创建新节点
+      let node = {}
+      node.data = {
+        // 节点内容
+        text: cur.children[0].value
+      }
+      node.children = []
+      // 如果当前的层级大于上一个节点的层级，那么是其子节点
+      if (cur.depth > currentDepth) {
+        // 添加到上一个节点的子节点列表里
+        currentChildren.push(node)
+        // 更新当前栈和数据
+        childrenQueue.push(node.children)
+        currentChildren = node.children
+        depthQueue.push(cur.depth)
+        currentDepth = cur.depth
+      } else if (cur.depth === currentDepth) {
+        // 如果当前层级等于上一个节点的层级，说明它们是同级节点
+        // 将上一个节点出栈
+        childrenQueue.pop()
+        currentChildren = childrenQueue[childrenQueue.length - 1]
+        depthQueue.pop()
+        currentDepth = depthQueue[depthQueue.length - 1]
+        // 追加到上上个节点的子节点列表里
+        currentChildren.push(node)
+        // 更新当前栈和数据
+        childrenQueue.push(node.children)
+        currentChildren = node.children
+        depthQueue.push(cur.depth)
+        currentDepth = cur.depth
+      } else {
+        // 如果当前层级小于上一个节点的层级，那么一直出栈，直到遇到比当前层级小的节点
+        while (depthQueue.length) {
+          childrenQueue.pop()
+          currentChildren = childrenQueue[childrenQueue.length - 1]
+          depthQueue.pop()
+          currentDepth = depthQueue[depthQueue.length - 1]
+          if (currentDepth < cur.depth) {
+            // 追加到该节点的子节点列表里
+            currentChildren.push(node)
+            // 更新当前栈和数据
+            childrenQueue.push(node.children)
+            currentChildren = node.children
+            depthQueue.push(cur.depth)
+            currentDepth = cur.depth
+            break
+          }
+        }
+      }
+    } else if (cur.type === 'list') {
+      currentChildren.push(...handleList(cur))
+    }
+  }
+  return root.children[0]
+}
--- a/Show More
+++ b/Show More