小程序点击图片实现自动播放视频

<view>
 <view class='vv' wx:for='{{vedio_data}}' wx:key=''>
 <view class='block' style='margin-left:20rpx;'>
  <image src='/img/1.png' class='img1' style='margin-left:20rpx'></image>
  <text class='text'>{{item.title}} </text>
  <view id="{{index}}" class="cover" style="display: {{ _index == index ? 'none' : 'block' }};" bindtap="videoplay" >
  <!-- 视频图层 -->
  <image class="videovideo2" src="{{item.img}}" mode="scaletofill">
   <!-- 视频按钮 -->
   <image class="videoplay" src="/img/bf.png" mode="scaletofill"></image>
  </image>
  </view>
 </view>
 <!-- 视频 -->
 <video src="{{item.url}}" id="{{index}}" class='video' wx:if="{{_index == index}}" >
<!-- log -->
 </video>
 </view>
 <view class='di'>
 <image src='/img/qd.png' class='bottom'></image>
 <text class='bottom_text'>敬请期待</text>
 </view>
</view>

/* 边框 */
.vv {
 width: 700rpx;
 height: 530rpx;
 border-left: gainsboro 1px solid;
 border-right: gainsboro 1px solid;
 border-top: gainsboro 1px solid;
 margin-bottom: 80rpx;
 border-radius: 15rpx;
 overflow: hidden;
 position: relative;
 top: 40rpx;
 left: 20rpx;
}
 
 
 
/* 小图标 */
.img1 {
 width: 36rpx;
 height: 28rpx;
 margin-top: 30rpx;
}
 
 
/* 标题文字 */
.text {
 font-size: 28rpx;
 color: #585858;
 margin-left: 10rpx;
}
 
/* 视频 */
.video {
 width: 100%;
 height: 450rpx;
 margin-top: 20rpx;
 border-bottom-left-radius: 15rpx;
 border-bottom-right-radius: 15rpx;
}
.videovideo2 {
 width: 703rpx;
 height: 453rpx;
 position: absolute;
 top: 80rpx;
 left: 20rpx;
 z-index: 99;
}
.videoplay{
 position: absolute;
 width: 80rpx;
 height: 80rpx;
 top:45%;
 left: 45%;
 margin: -30rpx 0 0 -30rpx;
 z-index: 100;
}
 
/* 底部盒子 */
.bottom {
 width: 40rpx;
 height: 40rpx;
}
 
/* 底部图片 */
.di {
 display: flex;
 flex-direction: row;
 padding: 60rpx 0rpx 100rpx 280rpx;
}
 
/* 底部文字 */
.bottom_text {
 font-size: 34rpx;
 color: #d8d8d8;
 margin-left: 10rpx;
}

// pages/class/class.js
page({
 /**
 * 页面的初始数据
 */
 data: {
 videoplay: null,
 
 vedio_data: [{
  title: '无13131（大班）',
  url: 'xxx',
  img: 'xxx',
  
  },
  {
  title: ' 如何23 1 、 2 、2423、4）',
  url: 'xxx',
  img: 'xxx'
  },
  {
  title: '温热碍',
  url: 'xxx',
  img:'xxx'
  },
  {
  title: '挑嘎嘎嘎输',
  url: 'xxx',
  img: 'xxx'
  },
  {
  title: '延伸挑战：运输圆球',
  url: 'xxx',
  img:'xxx'
  },
 
 ]
 },
 
 // 点击cover播放，其它视频结束
 videoplay: function (e) {
 var _index = e.currenttarget.id
 this.setdata({
  _index: _index
 })
 //停止正在播放的视频
 var videocontextprev = wx.createvideocontext(this.data._index)
 videocontextprev.stop();
 
 settimeout(function(){
 //将点击视频进行播放
  var videocontext = wx.createvideocontext(_index)
  videocontext.play();
 },500)
 },
})