wxml <view class="meetTimeDesc">例会的开始时间</view>             <picker mode="date" name="meetStartDate" value="{{meetStartDate}}" bindchange="bindStartDateChange">                 <view class="datePicker" >                     {{meetStartDate}}                 </view>             </picker> js data: {       meetStartDate:"2021-12-12",       meetStartTime:"11:11" }    bindStartDateChange:function(e){         this.setData({           meetStartDate: e.detail.value         })     }, 这样定义之后，在submit 的时候     submit(e){       console.log('form发生了submit事件，携带数据为：', e.detail.value)       wx.request({         url: 'http://localhost:8080/creatMeeting',         data:e.detail.value,         header: {           'content-type': 'application/json;charset=utf-8' // 默认值         },           method:'POST'       })     } 这样不管是修改后的日期就可以带到后台去了

{   "pages": [     "pages/index/index",     "pages/logs/logs"   ],   "window": {     "backgroundTextStyle": "light",     "navigationBarBackgroundColor": "#fff",     "navigationBarTitleText": "工具",     "navigationBarTextStyle": "black"   },   "style": "v2",   "sitemapLocation": "sitemap.json",   "lazyCodeLoading": "requiredComponents",   "tabBar": {     "list": [{       "pagePath": "pages/index/index",       "selectedIconPath": "images/selectHome.png",       "iconPath": "images/home.png",       "text": "首页"     }, {       "pagePath": "pages/index/index",       "selectedIconPath": "images/selectPlus.png",       "iconPath": "images/plus.png",       "text": "创建"     }, {       "pagePath": "pages/logs/logs",       "selectedIconPath": "images/selectMy.png",       "iconPath": "images/my.png",       "text": "我的"     }]   } } 就是初始的页面，找了几个图片测试tabBar功能