<!-- 整个视频 -->   <txv-video showCenterPlayBtn="{{false}}" id="vids" vid="{{vid}}" playerid="{{vid}}" isHiddenStop="{{true}}"     width="100%" controls bindtimeupdate="onVideoTimeUpdate" bindended="onVideoEnded" bindplay="onVideoPlay">     <view wx:if="{{!videoPlaying}}" catchtap="playVideo">       <image class="play" src="../../../images/play.png" mode="widthFix"></image>     </view>     <!-- 题目区域 -->     <view wx:if="{{currQuestion}}" class="question">       <!-- 题目标题和选项 -->       <view class="q-title">Q：{{currQuestion.title}}</view>       <view class="q-options">         <view wx:for="{{currQuestion.options}}" wx:key="id" class="option" bindtap="userAnswer" data-id="{{item.id}}" data-index="{{currQuestion.index}}">           {{item.id}}:{{item.text}}           <!-- 答对错的小勾 -->           <image wx:if="{{ currCorrect && item.id === currUserAnswer }}" class="curr-correct-icon" mode="widthFix"             src="../../../images/camp/correct.png"></image>         </view>       </view>       <!-- 答完后提示 -->       <image wx:if="{{currWrong}}" class="curr-wrong" mode="widthFix"         src="https://public.shengshizhuoge.com/basf_microapp/img/camp/2/video-q-wrong.png"></image>       <image wx:if="{{currCorrect}}" class="curr-correct" mode="widthFix"         src="https://public.shengshizhuoge.com/basf_microapp/img/camp/2/video-q-correct.png"></image>     </view>   </txv-video> JS playVideo(){     const TxvContext = requirePlugin("tencentvideo")     let txvContext = TxvContext.getTxvContext(this.data.vid)     txvContext.play()     this.setData({       videoPlaying: true     })   },

Vue代码，main.js已经配置过 <wx-open-launch-weapp id="launch-btn" username="gh_d11889f4cf09" path="pages/home/index" class="bb">     <script type="text/wxtag-template">       <style>.btn {width: 200px; height: 100px;}</style> <button class="btn">打开测试小程序</button> </script>   </wx-open-launch-weapp> 开发者工具中报这个错误 VM2284:1 [WXTAG] [JSCORE] The slot <template> or <script type="text/wxtag-template"> of <wx-open-launch-weapp> is missing r然后手机里面 按钮都不出现，请问为啥啊

因为第一次页面加载的时候显示不正常，之后切换页面就显示的跟预期一样 wxml   <!-- js高度计算瀑布流  -->   <view class="left" id="left-box">     <view wx:for="{{leftList}}" class="item" wx:key="text">       <image class="item-nail" src="{{item.nail}}" mode="widthFix"></image>       <view class="item-text">推文{{item.text}}</view>     </view>   </view>   <view class="right" id="right-box">     <view wx:for="{{rightList}}" class="item" wx:key="text">       <image class="item-nail" src="{{item.nail}}" mode="widthFix"></image>       <view class="item-text">推文{{item.text}}</view>     </view>   </view> </view> js waterfall(arr, index = 0) {     if (arr.length <= index) {       return     }     const query = wx.createSelectorQuery().in(this)     query.select('#left-box').boundingClientRect()     query.select('#right-box').boundingClientRect()     query.exec(rects => {       console.log('eee', rects)       if ( rects[0].height <= rects[1].height ) {         this.setData({           leftList: this.data.leftList.concat([arr[index]])         })       } else {         this.setData({           rightList: this.data.rightList.concat([arr[index]])         })       }       wx.nextTick(() => {         this.waterfall(arr, ++index)        })     })   }, [图片] 第一次 1，2 ，4，3.. 之后1，2，3，4...正常了 [图片] 为什么呀？，怎么规避第一次即第一次onload 进入出现的问题呢?