data: {
    indexCurrent: null,
  },
methods: {
    // 只播放一个视频，其他视频暂停
    video_play(e) {
      var curIdx = e.currentTarget.id;
      // 没有播放时播放视频
      // console.log(curIdx)
      if (!this.data.indexCurrent) {
        this.setData({
          indexCurrent: curIdx
        })
        var videoContext = wx.createVideoContext(curIdx, this) //这里对应的视频id
        videoContext.play()
      } else { // 有播放时先将prev暂停，再播放当前点击的current
        var videoContextPrev = wx.createVideoContext(this.data.indexCurrent, this)//this是在自定义组件下，当前组件实例的this，以操作组件内 video 组件（在自定义组件中药加上this，如果是普通页面即不需要加）
        if (this.data.indexCurrent != curIdx) {
          console.log(123)
          videoContextPrev.pause()
          this.setData({
            indexCurrent: curIdx
          })
          var videoContextCurrent = wx.createVideoContext(curIdx, this)
          videoContextCurrent.play()
        }
      }
    },

<video  bindtap="video_play" id="{{item.sid}}" poster="{{item.thumbnail}}" auto-pause-if-open-native wx:elif="{{item.type==\'video\'}}" src="{{item.images}}" src="{{item.video}}"></video>