<scroll-view class='scrollCar' scroll-y style="height:100vh"  bindscrolltolower="handleScrollBottom" scroll-into-view="{{toCity}}">     <block wx:for="{{carList}}" wx:key="index" wx:if="{{carList.length}}">         <view class="f-border-b" data-stocknum='{{item.stockNum}}' bindtap='changeCar'>             <my-car-item car-info="{{item}}"></my-car-item>         </view>         </block>         <view class="m-empty" wx:if="{{carList.length == 0}}">             <view class="n-c-p">                 <view class="n-c-img">                     <image class='allCarImg' src='../../Resources/no-car.png'></image>                 </view>                 <view>此城市没有此条件的车辆</view>             </view>         </view>         <view class="z-loading f-text-center f-wing-space" wx:if="{{isBottom}}">已到底线</view>         <view wx:else class="z-loading f-text-center f-wing-space">加载中...</view>     </block> </scroll-view>

var _this = this; this.setData(_this.data) 请问这样写 有性能问题吗

请问 客服界面的 live-player live-pusher 怎么实现，我写的wxml 中的顺序是player在前 pusher在后,双方进入房间前正常，但是双方进入房间后 pusher就被player覆盖了， wxss pusher 是 absolute或pusher player 都是absolute 都是过了 也不行，这个问题卡我好几天了，求大神指教 [图片]