Demo：修复同时选中多个节点添加图标时，所有节点图标都会统一为第一个节点的图标的问题

web/src/pages/Edit/components/NodeIconSidebar.vue

@@ -101,9 +101,14 @@ export default {
     handleNodeActive(...args) {
       this.activeNodes = [...args[1]]
       if (this.activeNodes.length > 0) {
-        let firstNode = this.activeNodes[0]
-        this.nodeImage = firstNode.getData('image') || ''
-        this.iconList = firstNode.getData('icon') || [] // 回显图标
+        if (this.activeNodes.length === 1) {
+          let firstNode = this.activeNodes[0]
+          this.nodeImage = firstNode.getData('image') || ''
+          this.iconList = firstNode.getData('icon') || [] // 回显图标
+        } else {
+          this.nodeImage = []
+          this.iconList = []
+        }
       } else {
         this.iconList = []
         this.nodeImage = ''
@@ -121,27 +126,31 @@ export default {
 
     // 设置icon
     setIcon(type, name) {
-      let key = type + '_' + name
-      let index = this.iconList.findIndex(item => {
-        return item === key
-      })
-      // 删除icon
-      if (index !== -1) {
-        this.iconList.splice(index, 1)
-      } else {
-        let typeIndex = this.iconList.findIndex(item => {
-          return item.split('_')[0] === type
-        })
-        // 替换icon
-        if (typeIndex !== -1) {
-          this.iconList.splice(typeIndex, 1, key)
-        } else {
-          // 增加icon
-          this.iconList.push(key)
-        }
-      }
       this.activeNodes.forEach(node => {
-        node.setIcon([...this.iconList])
+        const iconList = [...(node.getData('icon') || [])]
+        let key = type + '_' + name
+        let index = iconList.findIndex(item => {
+          return item === key
+        })
+        // 删除icon
+        if (index !== -1) {
+          iconList.splice(index, 1)
+        } else {
+          let typeIndex = iconList.findIndex(item => {
+            return item.split('_')[0] === type
+          })
+          // 替换icon
+          if (typeIndex !== -1) {
+            iconList.splice(typeIndex, 1, key)
+          } else {
+            // 增加icon
+            iconList.push(key)
+          }
+        }
+        node.setIcon(iconList)
+        if (this.activeNodes.length === 1) {
+          this.iconList = iconList
+        }
       })
     },