// 自定义tabba --> rindex.wxml <cover-view class="tab-bar" wx:if="{{showTabBar}}">   <cover-view class="tab-bar-border"></cover-view>   <cover-view     wx:for="{{isClientVersion?clientList:shopList}}"     wx:key="index"     class="tab-bar-item"     data-path="{{item.pagePath}}"     data-selectedPath="{{item.selectedIconPath}}"     data-index="{{index}}"     bindtap="switchTab"   >     <cover-image       class="cover-image"       src="{{selected === index ? item.selectedIconPath : item.iconPath}}">     </cover-image>     <cover-view       class="cover-view"       style="color: {{selected === index ? selectedColor : color}}">       {{item.text}}     </cover-view>   </cover-view> </cover-view> // index.js var app =  getApp(); Component({   data: {     showTabBar:true,     selected: 0,     color: "#7A7E83",     selectedColor: "#3cc51f",     isClientVersion:app.globalData.isClientVersion,     clientList: [{       pagePath: "/pages/index/index",       iconPath: "/assets/tabBar/order-nor@2x.png",       selectedIconPath: "/assets/tabBar/order-press@2x.png",       text: "预约"     },     {       pagePath: "/pages/message/message",       iconPath: "/assets/tabBar/my-nor@2x.png",       selectedIconPath: "/assets/tabBar/my-press@2x.png",       text: "我的"     }],     shopList: [{       pagePath: "/pages/managementServiceList/managementServiceList",       iconPath: "/assets/tabBar/my-nor@2x.png",       selectedIconPath: "/assets/tabBar/my-press@2x.png",       text: "服务列表"     },     {       pagePath: "/pages/message/message",       iconPath: "/assets/tabBar/my-nor@2x.png",       selectedIconPath: "/assets/tabBar/my-press@2x.png",       text: "我的"     }],     realList:[]   },   // 组件生命周期   lifetimes:{     attached(){       this.setData({         isClientVersion:app.globalData.isClientVersion,       })     }   },   methods: {     switchTab(e) {       const data = e.currentTarget.dataset       const url = data.path       wx.switchTab({url})     }   } }) // ‘我的’相关代码 onShow（）{  if (typeof this.getTabBar === 'function' && this.getTabBar()) {       this.getTabBar().setData({         selected: 1    // 根据tab的索引值设置       }) } // ‘预约页面’相关代码 onShow（）{  if (typeof this.getTabBar === 'function' && this.getTabBar()) {       this.getTabBar().setData({         selected: 0   // 根据tab的索引值设置       }) } // ‘服务列表’相关代码 onShow（）{  if (typeof this.getTabBar === 'function' && this.getTabBar()) {       this.getTabBar().setData({         selected: 0    // 根据tab的索引值设置       }) }