wx.createVideoContext(videoId) 當中的videoId 不能用setData 的, 一用setData 在videoId 程序不能控制 [代码]<video id="{{vid}}" src="http://wxsnsdy.tc.qq.com/105/20210/snsdyvideodownload?filekey=30280201010421301f0201690402534804102ca905ce620b1241b726bc41dcff44e00204012882540400&bizid=1023&hy=SH&fileparam=302c020101042530230204136ffd93020457e3c4ff02024ef202031e8d7f02030f42400204045a320a0201000400"></video>[代码] Page({   data: {        },   onLoad: function () {     this.setData({vid:"1"})     this.videoContext = wx.createVideoContext(this.data.vid);     this.video.play() <---- 這個會沒效用 });