diff --git a/web/src/pages/Edit/components/Edit.vue b/web/src/pages/Edit/components/Edit.vue
index 6403b2cd..a7ad8040 100644
--- a/web/src/pages/Edit/components/Edit.vue
+++ b/web/src/pages/Edit/components/Edit.vue
@@ -72,8 +72,7 @@ import OutlineEdit from './OutlineEdit.vue'
 import { showLoading, hideLoading } from '@/utils/loading'
 
 // 注册插件
-MindMap
-  .usePlugin(MiniMap)
+MindMap.usePlugin(MiniMap)
   .usePlugin(Watermark)
   .usePlugin(Drag)
   .usePlugin(KeyboardNavigation)
@@ -88,7 +87,7 @@ MindMap
   .usePlugin(Painter)
 
 // 注册自定义主题
-customThemeList.forEach((item) => {
+customThemeList.forEach(item => {
   MindMap.defineTheme(item.value, item.theme)
 })
 
@@ -132,7 +131,8 @@ export default {
     ...mapState({
       isZenMode: state => state.localConfig.isZenMode,
       openNodeRichText: state => state.localConfig.openNodeRichText,
-      useLeftKeySelectionRightKeyDrag: state => state.localConfig.useLeftKeySelectionRightKeyDrag,
+      useLeftKeySelectionRightKeyDrag: state =>
+        state.localConfig.useLeftKeySelectionRightKeyDrag
     })
   },
   watch: {
@@ -153,25 +153,48 @@ export default {
     this.$bus.$on('paddingChange', this.onPaddingChange)
     this.$bus.$on('export', this.export)
     this.$bus.$on('setData', this.setData)
-    this.$bus.$on('startTextEdit', () => {
-      this.mindMap.renderer.startTextEdit()
-    })
-    this.$bus.$on('endTextEdit', () => {
-      this.mindMap.renderer.endTextEdit()
-    })
-    this.$bus.$on('createAssociativeLine', () => {
-      this.mindMap.associativeLine.createLineFromActiveNode()
-    })
-    this.$bus.$on('startPainter', () => {
-      this.mindMap.painter.startPainter()
-    })
+    this.$bus.$on('startTextEdit', this.handleStartTextEdit)
+    this.$bus.$on('endTextEdit', this.handleEndTextEdit)
+    this.$bus.$on('createAssociativeLine', this.handleCreateLineFromActiveNode)
+    this.$bus.$on('startPainter', this.handleStartPainter)
     this.$bus.$on('node_tree_render_end', this.handleHideLoading)
     this.$bus.$on('showLoading', this.handleShowLoading)
-    window.addEventListener('resize', () => {
-      this.mindMap.resize()
-    })
+    window.addEventListener('resize', this.handleResize)
+  },
+  beforeDestroy() {
+    this.$bus.$off('execCommand', this.execCommand)
+    this.$bus.$off('paddingChange', this.onPaddingChange)
+    this.$bus.$off('export', this.export)
+    this.$bus.$off('setData', this.setData)
+    this.$bus.$off('startTextEdit', this.handleStartTextEdit)
+    this.$bus.$off('endTextEdit', this.handleEndTextEdit)
+    this.$bus.$off('createAssociativeLine', this.handleCreateLineFromActiveNode)
+    this.$bus.$off('startPainter', this.handleStartPainter)
+    this.$bus.$off('node_tree_render_end', this.handleHideLoading)
+    this.$bus.$off('showLoading', this.handleShowLoading)
+    window.removeEventListener('resize', this.handleResize)
   },
   methods: {
+    handleStartTextEdit() {
+      this.mindMap.renderer.startTextEdit()
+    },
+
+    handleEndTextEdit() {
+      this.mindMap.renderer.endTextEdit()
+    },
+
+    handleCreateLineFromActiveNode() {
+      this.mindMap.associativeLine.createLineFromActiveNode()
+    },
+
+    handleStartPainter() {
+      this.mindMap.painter.startPainter()
+    },
+
+    handleResize() {
+      this.mindMap.resize()
+    },
+
     // 显示loading
     handleShowLoading() {
       this.enableShowLoading = true
@@ -252,7 +275,7 @@ export default {
         ...(config || {}),
         iconList: icon,
         useLeftKeySelectionRightKeyDrag: this.useLeftKeySelectionRightKeyDrag,
-        customInnerElsAppendTo: null,
+        customInnerElsAppendTo: null
         // isUseCustomNodeContent: true,
         // 示例1：组件里用到了router、store、i18n等实例化vue组件时需要用到的东西
         // customCreateNodeContent: (node) => {
@@ -309,18 +332,18 @@ export default {
       })
       this.bindSaveEvent()
       // setTimeout(() => {
-        // 动态给指定节点添加子节点
-        // this.mindMap.execCommand('INSERT_CHILD_NODE', false, this.mindMap.renderer.root, {
-        //   text: '自定义内容'
-        // })
+      // 动态给指定节点添加子节点
+      // this.mindMap.execCommand('INSERT_CHILD_NODE', false, this.mindMap.renderer.root, {
+      //   text: '自定义内容'
+      // })
 
-        // 动态给指定节点添加同级节点
-        // this.mindMap.execCommand('INSERT_NODE', false, this.mindMap.renderer.root, {
-        //   text: '自定义内容'
-        // })
+      // 动态给指定节点添加同级节点
+      // this.mindMap.execCommand('INSERT_NODE', false, this.mindMap.renderer.root, {
+      //   text: '自定义内容'
+      // })
 
-        // 动态删除指定节点
-        // this.mindMap.execCommand('REMOVE_NODE', this.mindMap.renderer.root.children[0])
+      // 动态删除指定节点
+      // this.mindMap.execCommand('REMOVE_NODE', this.mindMap.renderer.root.children[0])
       // }, 5000);
       // 如果应用被接管，那么抛出事件传递思维导图实例
       if (window.takeOverApp) {
@@ -386,7 +409,7 @@ export default {
       if (!showed) {
         this.$notify.info({
           title: this.$t('edit.newFeatureNoticeTitle'),
-          message: this.$t('edit.newFeatureNoticeMessage'), 
+          message: this.$t('edit.newFeatureNoticeMessage'),
           duration: 0,
           onClose: () => {
             localStorage.setItem('SIMPLE_MIND_MAP_NEW_FEATURE_TIP_1', true)
diff --git a/web/src/pages/Edit/components/Export.vue b/web/src/pages/Edit/components/Export.vue
index 6602c66b..60fb8852 100644
--- a/web/src/pages/Edit/components/Export.vue
+++ b/web/src/pages/Edit/components/Export.vue
@@ -24,7 +24,10 @@
           >{{ $t('export.include') }}</el-checkbox
         >
       </div>
-      <div class="paddingInputBox" v-show="['svg', 'png', 'pdf'].includes(exportType)">
+      <div
+        class="paddingInputBox"
+        v-show="['svg', 'png', 'pdf'].includes(exportType)"
+      >
         <span class="name">{{ $t('export.paddingX') }}</span>
         <el-input
           style="width: 100px"
@@ -32,7 +35,9 @@
           size="mini"
           @change="onPaddingChange"
         ></el-input>
-        <span class="name" style="margin-left: 10px;">{{ $t('export.paddingY') }}</span>
+        <span class="name" style="margin-left: 10px;">{{
+          $t('export.paddingY')
+        }}</span>
         <el-input
           style="width: 100px"
           v-model="paddingY"
@@ -47,11 +52,11 @@
         >
       </div>
       <div class="downloadTypeList">
-        <div 
-          class="downloadTypeItem" 
-          v-for="item in downTypeList" 
-          :key="item.type" 
-          :class="{active: exportType === item.type}" 
+        <div
+          class="downloadTypeItem"
+          v-for="item in downTypeList"
+          :key="item.type"
+          :class="{ active: exportType === item.type }"
           @click="exportType = item.type"
         >
           <div class="icon iconfont" :class="[item.icon, item.type]"></div>
@@ -104,14 +109,19 @@ export default {
 
     downTypeList() {
       return downTypeList[this.$i18n.locale] || downTypeList.zh
-    },
+    }
   },
   created() {
-    this.$bus.$on('showExport', () => {
-      this.dialogVisible = true
-    })
+    this.$bus.$on('showExport', this.handleShowExport)
+  },
+  beforeDestroy() {
+    this.$bus.$off('showExport', this.handleShowExport)
   },
   methods: {
+    handleShowExport() {
+      this.dialogVisible = true
+    },
+
     onPaddingChange() {
       this.$bus.$emit('paddingChange', {
         exportPaddingX: Number(this.paddingX),
@@ -163,12 +173,7 @@ export default {
           this.isTransparent
         )
       } else {
-        this.$bus.$emit(
-          'export',
-          this.exportType,
-          true,
-          this.fileName
-        )
+        this.$bus.$emit('export', this.exportType, true, this.fileName)
       }
       this.$notify.info({
         title: this.$t('export.notifyTitle'),
@@ -189,7 +194,7 @@ export default {
 
         .info {
           .name {
-            color: hsla(0,0%,100%,.9);
+            color: hsla(0, 0%, 100%, 0.9);
           }
         }
       }
@@ -222,7 +227,7 @@ export default {
     margin-top: 10px;
 
     &.warning {
-      color: #F56C6C;
+      color: #f56c6c;
     }
   }
 
@@ -236,7 +241,7 @@ export default {
       overflow: hidden;
       margin: 10px;
       border-radius: 11px;
-      box-shadow: 0 0 20px 0 rgba(0,0,0,.02);
+      box-shadow: 0 0 20px 0 rgba(0, 0, 0, 0.02);
       background-color: #fff;
       display: flex;
       align-items: center;
diff --git a/web/src/pages/Edit/components/Import.vue b/web/src/pages/Edit/components/Import.vue
index 40cd548d..d2d865e1 100644
--- a/web/src/pages/Edit/components/Import.vue
+++ b/web/src/pages/Edit/components/Import.vue
@@ -58,11 +58,16 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('showImport', () => {
-      this.dialogVisible = true
-    })
+    this.$bus.$on('showImport', this.handleShowImport)
+  },
+  beforeDestroy() {
+    this.$bus.$off('showImport', this.handleShowImport)
   },
   methods: {
+    handleShowImport() {
+      this.dialogVisible = true
+    },
+
     /**
      * @Author: 王林
      * @Date: 2021-08-03 22:48:42
diff --git a/web/src/pages/Edit/components/NodeHyperlink.vue b/web/src/pages/Edit/components/NodeHyperlink.vue
index 92b0c11b..100ef170 100644
--- a/web/src/pages/Edit/components/NodeHyperlink.vue
+++ b/web/src/pages/Edit/components/NodeHyperlink.vue
@@ -44,7 +44,15 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('node_active', (...args) => {
+    this.$bus.$on('node_active', this.handleNodeActive)
+    this.$bus.$on('showNodeLink', this.handleShowNodeLink)
+  },
+  beforeDestroy() {
+    this.$bus.$off('node_active', this.handleNodeActive)
+    this.$bus.$off('showNodeLink', this.handleShowNodeLink)
+  },
+  methods: {
+    handleNodeActive(...args) {
       this.activeNodes = args[1]
       if (this.activeNodes.length > 0) {
         let firstNode = this.activeNodes[0]
@@ -54,14 +62,14 @@ export default {
         this.link = ''
         this.linkTitle = ''
       }
-    })
-    this.$bus.$on('showNodeLink', () => {
+    },
+
+    handleShowNodeLink() {
       this.activeNodes[0].mindMap.keyCommand.pause()
       this.$bus.$emit('startTextEdit')
       this.dialogVisible = true
-    })
-  },
-  methods: {
+    },
+
     /**
      * @Author: 王林
      * @Date: 2021-06-22 22:08:11
diff --git a/web/src/pages/Edit/components/NodeIcon.vue b/web/src/pages/Edit/components/NodeIcon.vue
index 04f0c79b..6cc5e6db 100644
--- a/web/src/pages/Edit/components/NodeIcon.vue
+++ b/web/src/pages/Edit/components/NodeIcon.vue
@@ -43,7 +43,15 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('node_active', (...args) => {
+    this.$bus.$on('node_active', this.handleNodeActive)
+    this.$bus.$on('showNodeIcon', this.handleShowNodeIcon)
+  },
+  beforeDestroy() {
+    this.$bus.$off('node_active', this.handleNodeActive)
+    this.$bus.$off('showNodeIcon', this.handleShowNodeIcon)
+  },
+  methods: {
+    handleNodeActive(...args) {
       this.activeNodes = args[1]
       if (this.activeNodes.length > 0) {
         let firstNode = this.activeNodes[0]
@@ -51,15 +59,15 @@ export default {
       } else {
         this.iconList = []
       }
-    })
-    this.$bus.$on('showNodeIcon', () => {
+    },
+
+    handleShowNodeIcon() {
       this.dialogVisible = true
-    })
-  },
-  methods: {
+    },
+
     getHtml(icon) {
       return /^<svg/.test(icon) ? icon : `<img src="${icon}" />`
-    },  
+    },
 
     /**
      * @Author: 王林
diff --git a/web/src/pages/Edit/components/NodeIconSidebar.vue b/web/src/pages/Edit/components/NodeIconSidebar.vue
index 5293e7f7..01e2fbdb 100644
--- a/web/src/pages/Edit/components/NodeIconSidebar.vue
+++ b/web/src/pages/Edit/components/NodeIconSidebar.vue
@@ -1,40 +1,53 @@
 <template>
-    <Sidebar ref="sidebar" title="图标/贴纸">
-        <div class="box" :class="{ isDark: isDark }">
-            <el-tabs v-model="activeName">
-                <el-tab-pane label="图标" name="icon"></el-tab-pane>
-                <el-tab-pane label="贴纸" name="image"></el-tab-pane>
-            </el-tabs>
-            <div class="boxContent">
-                <!-- 图标 -->
-                <div class="iconBox" v-if="activeName === 'icon'">
-                    <div class="item" v-for="item in nodeIconList" :key="item.name">
-                        <div class="title">{{ item.name }}</div>
-                        <div class="list">
-                            <div class="icon" v-for="icon in item.list" :key="icon.name" v-html="getHtml(icon.icon)" :class="{
-                                selected: iconList.includes(item.type + '_' + icon.name)
-                            }" @click="setIcon(item.type, icon.name)"></div>
-                        </div>
-                    </div>
-                </div>
-                <!-- 贴纸 -->
-                <div class="imageBox" v-if="activeName === 'image'">
-                    <div class="item" v-for="item in nodeImageList" :key="item.name">
-                        <div class="title">{{ item.name }}</div>
-                        <div class="list">
-                            <div class="icon" v-for="image in item.list" :key="image.url" :class="{
-                                selected: nodeImage === image.url
-                            }" @click="setImage(image)">
-                                <img :src="image.url" alt="">
-                            </div>
-                        </div>
-                    </div>
-                </div>
+  <Sidebar ref="sidebar" title="图标/贴纸">
+    <div class="box" :class="{ isDark: isDark }">
+      <el-tabs v-model="activeName">
+        <el-tab-pane label="图标" name="icon"></el-tab-pane>
+        <el-tab-pane label="贴纸" name="image"></el-tab-pane>
+      </el-tabs>
+      <div class="boxContent">
+        <!-- 图标 -->
+        <div class="iconBox" v-if="activeName === 'icon'">
+          <div class="item" v-for="item in nodeIconList" :key="item.name">
+            <div class="title">{{ item.name }}</div>
+            <div class="list">
+              <div
+                class="icon"
+                v-for="icon in item.list"
+                :key="icon.name"
+                v-html="getHtml(icon.icon)"
+                :class="{
+                  selected: iconList.includes(item.type + '_' + icon.name)
+                }"
+                @click="setIcon(item.type, icon.name)"
+              ></div>
             </div>
+          </div>
         </div>
-    </Sidebar>
+        <!-- 贴纸 -->
+        <div class="imageBox" v-if="activeName === 'image'">
+          <div class="item" v-for="item in nodeImageList" :key="item.name">
+            <div class="title">{{ item.name }}</div>
+            <div class="list">
+              <div
+                class="icon"
+                v-for="image in item.list"
+                :key="image.url"
+                :class="{
+                  selected: nodeImage === image.url
+                }"
+                @click="setImage(image)"
+              >
+                <img :src="image.url" alt="" />
+              </div>
+            </div>
+          </div>
+        </div>
+      </div>
+    </div>
+  </Sidebar>
 </template>
-  
+
 <script>
 import Sidebar from './Sidebar'
 import { mapState } from 'vuex'
@@ -43,204 +56,206 @@ import icon from '@/config/icon'
 import image from '@/config/image'
 
 export default {
-    name: 'NodeIconSidebar',
-    components: {
-        Sidebar
-    },
-    data() {
-        return {
-            activeName: 'icon',
-            nodeIconList: [...nodeIconList, ...icon],
-            nodeImageList: [...image],
-            iconList: [],
-            nodeImage: '',
-            activeNodes: []
-        }
-    },
-    computed: {
-        ...mapState(['activeSidebar', 'isDark']),
-    },
-    watch: {
-        activeSidebar(val) {
-            if (val === 'nodeIconSidebar') {
-                this.$refs.sidebar.show = true
-            } else {
-                this.$refs.sidebar.show = false
-            }
-        }
-    },
-    created() {
-        this.$bus.$on('node_active', (...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
-            } else {
-                this.iconList = []
-                this.nodeImage = ''
-            }
-        })
-        this.$bus.$on('showNodeIcon', () => {
-            this.dialogVisible = true
-        })
-    },
-    methods: {
-        // 获取图标渲染方式
-        getHtml(icon) {
-            return /^<svg/.test(icon) ? icon : `<img src="${icon}" />`
-        },
-
-        // 设置icon
-        setIcon(type, name) {
-            let key = type + '_' + name
-            let index = this.iconList.findIndex(item => {
-                return item === key
-            })
-            // 删除icon
-            if (index !== -1) {
-                this.iconList.splice(index, 1)
-            } else {
-                let typeIndex = this.iconList.findIndex(item => {
-                    return item.split('_')[0] === type
-                })
-                // 替换icon
-                if (typeIndex !== -1) {
-                    this.iconList.splice(typeIndex, 1, key)
-                } else {
-                    // 增加icon
-                    this.iconList.push(key)
-                }
-            }
-            this.activeNodes.forEach(node => {
-                node.setIcon([...this.iconList])
-
-            })
-        },
-
-        // 设置贴纸
-        setImage(image) {
-            this.activeNodes.forEach(node => {
-                this.nodeImage = image.url
-                node.setImage({
-                    ...image
-                })
-            })
-
-        }
+  name: 'NodeIconSidebar',
+  components: {
+    Sidebar
+  },
+  data() {
+    return {
+      activeName: 'icon',
+      nodeIconList: [...nodeIconList, ...icon],
+      nodeImageList: [...image],
+      iconList: [],
+      nodeImage: '',
+      activeNodes: []
     }
+  },
+  computed: {
+    ...mapState(['activeSidebar', 'isDark'])
+  },
+  watch: {
+    activeSidebar(val) {
+      if (val === 'nodeIconSidebar') {
+        this.$refs.sidebar.show = true
+      } else {
+        this.$refs.sidebar.show = false
+      }
+    }
+  },
+  created() {
+    this.$bus.$on('node_active', this.handleNodeActive)
+    this.$bus.$on('showNodeIcon', this.handleShowNodeIcon)
+  },
+  beforeDestroy() {
+    this.$bus.$off('node_active', this.handleNodeActive)
+    this.$bus.$off('showNodeIcon', this.handleShowNodeIcon)
+  },
+  methods: {
+    handleNodeActive(...args) {
+      this.activeNodes = args[1]
+      if (this.activeNodes.length > 0) {
+        let firstNode = this.activeNodes[0]
+        this.nodeImage = firstNode.getData('image')
+        this.iconList = firstNode.getData('icon') || [] // 回显图标
+      } else {
+        this.iconList = []
+        this.nodeImage = ''
+      }
+    },
+
+    handleShowNodeIcon() {
+      this.dialogVisible = true
+    },
+
+    // 获取图标渲染方式
+    getHtml(icon) {
+      return /^<svg/.test(icon) ? icon : `<img src="${icon}" />`
+    },
+
+    // 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])
+      })
+    },
+
+    // 设置贴纸
+    setImage(image) {
+      this.activeNodes.forEach(node => {
+        this.nodeImage = image.url
+        node.setImage({
+          ...image
+        })
+      })
+    }
+  }
 }
 </script>
-  
+
 <style lang="less" scoped>
 .box {
-    padding: 0 20px;
-
-    &.isDark {
-        .title {
-            color: #fff;
-        }
-
-
-    }
+  padding: 0 20px;
 
+  &.isDark {
     .title {
-        font-size: 16px;
-        font-weight: 500;
-        color: #333;
+      color: #fff;
     }
+  }
 
-    .boxContent {
-        .iconBox {
-            .item {
-                margin-bottom: 20px;
-                font-weight: bold;
+  .title {
+    font-size: 16px;
+    font-weight: 500;
+    color: #333;
+  }
 
-                .title {
-                    margin-bottom: 10px;
-                }
+  .boxContent {
+    .iconBox {
+      .item {
+        margin-bottom: 20px;
+        font-weight: bold;
 
-                .list {
-                    display: flex;
-                    flex-wrap: wrap;
-
-                    .icon {
-                        width: 24px;
-                        height: 24px;
-                        margin-right: 10px;
-                        margin-bottom: 10px;
-                        cursor: pointer;
-                        position: relative;
-
-                        /deep/ img {
-                            width: 100%;
-                            height: 100%;
-                        }
-
-                        /deep/ svg {
-                            width: 100%;
-                            height: 100%;
-                        }
-
-                        &.selected {
-                            &::after {
-                                content: '';
-                                position: absolute;
-                                left: -4px;
-                                top: -4px;
-                                width: 28px;
-                                height: 28px;
-                                border-radius: 50%;
-                                border: 2px solid #409eff;
-                            }
-                        }
-                    }
-                }
-            }
+        .title {
+          margin-bottom: 10px;
         }
 
-        .imageBox {
-            margin-bottom: 20px;
-            font-weight: bold;
+        .list {
+          display: flex;
+          flex-wrap: wrap;
 
-            .title {
-                margin-bottom: 10px;
+          .icon {
+            width: 24px;
+            height: 24px;
+            margin-right: 10px;
+            margin-bottom: 10px;
+            cursor: pointer;
+            position: relative;
+
+            /deep/ img {
+              width: 100%;
+              height: 100%;
             }
 
-            .list {
-                display: flex;
-                flex-wrap: wrap;
-
-                .icon {
-                    width: 50px;
-                    height: 50px;
-                    margin-right: 10px;
-                    margin-bottom: 10px;
-                    cursor: pointer;
-                    position: relative;
-
-                    /deep/ img {
-                        width: 100%;
-                        height: 100%;
-                        object-fit: contain;
-                    }
-
-                    &.selected {
-                        &::after {
-                            content: '';
-                            position: absolute;
-                            left: -4px;
-                            top: -4px;
-                            width: 54px;
-                            height: 54px;
-                            border: 2px solid #409eff;
-                        }
-                    }
-                }
-
+            /deep/ svg {
+              width: 100%;
+              height: 100%;
             }
+
+            &.selected {
+              &::after {
+                content: '';
+                position: absolute;
+                left: -4px;
+                top: -4px;
+                width: 28px;
+                height: 28px;
+                border-radius: 50%;
+                border: 2px solid #409eff;
+              }
+            }
+          }
         }
+      }
     }
+
+    .imageBox {
+      margin-bottom: 20px;
+      font-weight: bold;
+
+      .title {
+        margin-bottom: 10px;
+      }
+
+      .list {
+        display: flex;
+        flex-wrap: wrap;
+
+        .icon {
+          width: 50px;
+          height: 50px;
+          margin-right: 10px;
+          margin-bottom: 10px;
+          cursor: pointer;
+          position: relative;
+
+          /deep/ img {
+            width: 100%;
+            height: 100%;
+            object-fit: contain;
+          }
+
+          &.selected {
+            &::after {
+              content: '';
+              position: absolute;
+              left: -4px;
+              top: -4px;
+              width: 54px;
+              height: 54px;
+              border: 2px solid #409eff;
+            }
+          }
+        }
+      }
+    }
+  }
 }
 </style>
-  
\ No newline at end of file
diff --git a/web/src/pages/Edit/components/NodeImage.vue b/web/src/pages/Edit/components/NodeImage.vue
index 39093020..9e5a597d 100644
--- a/web/src/pages/Edit/components/NodeImage.vue
+++ b/web/src/pages/Edit/components/NodeImage.vue
@@ -6,11 +6,19 @@
     width="500"
   >
     <div class="title">方式一</div>
-    <ImgUpload ref="ImgUpload" v-model="img" style="margin-bottom: 12px;"></ImgUpload>
+    <ImgUpload
+      ref="ImgUpload"
+      v-model="img"
+      style="margin-bottom: 12px;"
+    ></ImgUpload>
     <div class="title">方式二</div>
     <div class="inputBox">
       <span class="label">请输入图片地址</span>
-      <el-input v-model="imgUrl" size="mini" placeholder="http://xxx.com/xx.jpg"></el-input>
+      <el-input
+        v-model="imgUrl"
+        size="mini"
+        placeholder="http://xxx.com/xx.jpg"
+      ></el-input>
     </div>
     <div class="title">可选</div>
     <div class="inputBox">
@@ -50,10 +58,19 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('node_active', (...args) => {
+    this.$bus.$on('node_active', this.handleNodeActive)
+    this.$bus.$on('showNodeImage', this.handleShowNodeImage)
+  },
+  beforeDestroy() {
+    this.$bus.$off('node_active', this.handleNodeActive)
+    this.$bus.$off('showNodeImage', this.handleShowNodeImage)
+  },
+  methods: {
+    handleNodeActive(...args) {
       this.activeNodes = args[1]
-    })
-    this.$bus.$on('showNodeImage', () => {
+    },
+
+    handleShowNodeImage() {
       this.reset()
       if (this.activeNodes.length > 0) {
         let firstNode = this.activeNodes[0]
@@ -68,9 +85,8 @@ export default {
         this.imgTitle = firstNode.getData('imageTitle')
       }
       this.dialogVisible = true
-    })
-  },
-  methods: {
+    },
+
     cancel() {
       this.dialogVisible = false
       this.reset()
diff --git a/web/src/pages/Edit/components/NodeNote.vue b/web/src/pages/Edit/components/NodeNote.vue
index 252f222c..0f4786cd 100644
--- a/web/src/pages/Edit/components/NodeNote.vue
+++ b/web/src/pages/Edit/components/NodeNote.vue
@@ -43,7 +43,15 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('node_active', (...args) => {
+    this.$bus.$on('node_active', this.handleNodeActive)
+    this.$bus.$on('showNodeNote', this.handleShowNodeNote)
+  },
+  beforeDestroy() {
+    this.$bus.$off('node_active', this.handleNodeActive)
+    this.$bus.$off('showNodeNote', this.handleShowNodeNote)
+  },
+  methods: {
+    handleNodeActive(...args) {
       this.activeNodes = args[1]
       if (this.activeNodes.length > 0) {
         let firstNode = this.activeNodes[0]
@@ -51,16 +59,16 @@ export default {
       } else {
         this.note = ''
       }
-    })
-    this.$bus.$on('showNodeNote', () => {
+    },
+
+    handleShowNodeNote() {
       this.$bus.$emit('startTextEdit')
       this.dialogVisible = true
       this.$nextTick(() => {
         this.initEditor()
       })
-    })
-  },
-  methods: {
+    },
+
     /**
      * @Author: 王林25
      * @Date: 2022-05-09 11:37:05
diff --git a/web/src/pages/Edit/components/NodeTag.vue b/web/src/pages/Edit/components/NodeTag.vue
index 711296d7..b12e093b 100644
--- a/web/src/pages/Edit/components/NodeTag.vue
+++ b/web/src/pages/Edit/components/NodeTag.vue
@@ -59,7 +59,15 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('node_active', (...args) => {
+    this.$bus.$on('node_active', this.handleNodeActive)
+    this.$bus.$on('showNodeTag', this.handleShowNodeTag)
+  },
+  beforeDestroy() {
+    this.$bus.$off('node_active', this.handleNodeActive)
+    this.$bus.$off('showNodeTag', this.handleShowNodeTag)
+  },
+  methods: {
+    handleNodeActive(...args) {
       this.activeNodes = args[1]
       if (this.activeNodes.length > 0) {
         let firstNode = this.activeNodes[0]
@@ -68,13 +76,13 @@ export default {
         this.tagArr = []
         this.tag = ''
       }
-    })
-    this.$bus.$on('showNodeTag', () => {
+    },
+
+    handleShowNodeTag() {
       this.$bus.$emit('startTextEdit')
       this.dialogVisible = true
-    })
-  },
-  methods: {
+    },
+
     /**
      * @Author: 王林
      * @Date: 2021-06-24 21:48:14
diff --git a/web/src/pages/Edit/components/Outline.vue b/web/src/pages/Edit/components/Outline.vue
index 64208bea..44723a1c 100644
--- a/web/src/pages/Edit/components/Outline.vue
+++ b/web/src/pages/Edit/components/Outline.vue
@@ -73,7 +73,19 @@ export default {
   },
   created() {
     window.addEventListener('keydown', this.onKeyDown)
-    this.$bus.$on('data_change', () => {
+    this.$bus.$on('data_change', this.handleDataChange)
+    this.$bus.$on('node_tree_render_end', this.handleNodeTreeRenderEnd)
+  },
+  mounted() {
+    this.refresh()
+  },
+  beforeDestroy() {
+    window.removeEventListener('keydown', this.onKeyDown)
+    this.$bus.$off('data_change', this.handleDataChange)
+    this.$bus.$off('node_tree_render_end', this.handleNodeTreeRenderEnd)
+  },
+  methods: {
+    handleDataChange() {
       // 在大纲里操作节点时不要响应该事件，否则会重新刷新树
       if (this.notHandleDataChange) {
         this.notHandleDataChange = false
@@ -84,8 +96,9 @@ export default {
         return
       }
       this.refresh()
-    })
-    this.$bus.$on('node_tree_render_end', () => {
+    },
+
+    handleNodeTreeRenderEnd() {
       // 当前存在未完成的节点插入操作
       if (this.insertType) {
         this[this.insertType]()
@@ -100,15 +113,8 @@ export default {
           this.afterCreateNewNode()
         })
       }
-    })
-  },
-  mounted() {
-    this.refresh()
-  },
-  beforeDestroy() {
-    window.removeEventListener('keydown', this.onKeyDown)
-  },
-  methods: {
+    },
+
     // 刷新树数据
     refresh() {
       let data = this.mindMap.getData()
@@ -332,7 +338,8 @@ export default {
       }
     }
 
-    /deep/ .el-tree-node__content:hover, .el-upload-list__item:hover {
+    /deep/ .el-tree-node__content:hover,
+    .el-upload-list__item:hover {
       background-color: hsla(0, 0%, 100%, 0.02) !important;
     }
 
diff --git a/web/src/pages/Edit/components/Search.vue b/web/src/pages/Edit/components/Search.vue
index c5dd2391..15fbc512 100644
--- a/web/src/pages/Edit/components/Search.vue
+++ b/web/src/pages/Edit/components/Search.vue
@@ -1,7 +1,7 @@
 <template>
-  <div 
-    class="searchContainer" 
-    :class="{ isDark: isDark, show: show }" 
+  <div
+    class="searchContainer"
+    :class="{ isDark: isDark, show: show }"
     @mouseleave="onMouseleave"
   >
     <div class="closeBtnBox">
@@ -89,16 +89,23 @@ export default {
   },
   created() {
     this.$bus.$on('show_search', this.showSearch)
-    this.mindMap.on('search_info_change', data => {
-      this.currentIndex = data.currentIndex + 1
-      this.total = data.total
-      this.showSearchInfo = true
-    })
+    this.mindMap.on('search_info_change', this.handleSearchInfoChange)
     this.mindMap.keyCommand.addShortcut('Control+f', this.showSearch)
   },
+  beforeDestroy() {
+    this.$bus.$off('show_search', this.showSearch)
+    this.mindMap.off('search_info_change', this.handleSearchInfoChange)
+    this.mindMap.keyCommand.removeShortcut('Control+f', this.showSearch)
+  },
   methods: {
     isUndef,
 
+    handleSearchInfoChange(data) {
+      this.currentIndex = data.currentIndex + 1
+      this.total = data.total
+      this.showSearchInfo = true
+    },
+
     showSearch() {
       this.$bus.$emit('closeSideBar')
       this.show = true
diff --git a/web/src/pages/Edit/components/Sidebar.vue b/web/src/pages/Edit/components/Sidebar.vue
index 377a93c0..33ced970 100644
--- a/web/src/pages/Edit/components/Sidebar.vue
+++ b/web/src/pages/Edit/components/Sidebar.vue
@@ -49,13 +49,18 @@ export default {
     }
   },
   created() {
-    this.$bus.$on('closeSideBar', () => {
-      this.close()
-    })
+    this.$bus.$on('closeSideBar', this.handleCloseSidebar)
+  },
+  beforeDestroy() {
+    this.$bus.$off('closeSideBar', this.handleCloseSidebar)
   },
   methods: {
     ...mapMutations(['setActiveSidebar']),
 
+    handleCloseSidebar() {
+      this.close()
+    },
+
     close() {
       this.show = false
       this.setActiveSidebar('')
diff --git a/web/src/pages/Edit/components/Theme.vue b/web/src/pages/Edit/components/Theme.vue
index 38c1965a..9b6c6c8b 100644
--- a/web/src/pages/Edit/components/Theme.vue
+++ b/web/src/pages/Edit/components/Theme.vue
@@ -81,15 +81,19 @@ export default {
     this.initGroup()
     this.theme = this.mindMap.getTheme()
     this.handleDark()
-
-    this.mindMap.on('view_theme_change', () => {
-      this.theme = this.mindMap.getTheme()
-      this.handleDark()
-    })
+    this.mindMap.on('view_theme_change', this.handleViewThemeChange)
+  },
+  beforeDestroy() {
+    this.mindMap.off('view_theme_change', this.handleViewThemeChange)
   },
   methods: {
     ...mapMutations(['setIsDark']),
 
+    handleViewThemeChange() {
+      this.theme = this.mindMap.getTheme()
+      this.handleDark()
+    },
+
     initGroup() {
       let baiduThemes = [
         'default',
diff --git a/web/src/pages/Edit/components/Toolbar.vue b/web/src/pages/Edit/components/Toolbar.vue
index 4f8b7d56..26ff1e71 100644
--- a/web/src/pages/Edit/components/Toolbar.vue
+++ b/web/src/pages/Edit/components/Toolbar.vue
@@ -247,7 +247,7 @@ export default {
     this.$bus.$off('node_active', this.onNodeActive)
     this.$bus.$off('back_forward', this.onBackForward)
     this.$bus.$off('write_local_file', this.onWriteLocalFile)
-    this.$bus.$on('painter_start', this.onPainterStart)
+    this.$bus.$off('painter_start', this.onPainterStart)
     this.$bus.$off('painter_end', this.onPainterEnd)
   },
   methods: {