<view class="page-body">

  <view class="banner" style="width:100%;height:100%;position: relative;">

<video id="myVideo1" src="https://digiest.lxsmarts.com/digiest_public/einstein.mp4" poster="https://digiest.lxsmarts.com/digiest_public/einstein.png" ></video>

  </view>

</view>

#myVideo1 {

  width: 750rpx;

  height: 2000rpx;

}

就以上的代码，哪位大佬有遇到过麻烦路过指点指点，以上视频图片链接仅为测试