<scroll-view style="height: 100vh" scroll-y="{{true}}">     <view class="video-container">       <block wx:for="{{3}}" wx:key="index">           <view class="video-bg" style="width: 100%; height: 400rpx"></view>           <video src="https://video-beta.djcars.cn/1/J5fTCp76X4.mp4" style="width: 100%; height: 400rpx"></video>       </block>     </view> </scroll-view> 全部代码就这么多，随便找个IOS滚一下，控件会消失，无论是 control 还是 中间播放按钮