if (data.data.poster.indexOf('png') != -1 || data.data.poster.indexOf('jpg') != -1) {
          wx.hideToast();
          if (data.code == 0) {
            wx.showToast({
              title: data.message,
              icon: 'none'
            })
          } else {
            that.setData({
              poster: data.data.poster,
              showVideo: true
            })
          }
        } else {
          //图片逻辑生成错误，发送3次请求之后放弃。
          var requestTimePic = that.data.requestTimePic;
          that.setData({
            requestTimePic: requestTimePic + 1
          });
          if (requestTimePic < 3) {
            setTimeout(function() {
              that.getKindPoster();
            }, 1000);
          }
        }