wx.createAudioContext(audioId)

建设并返回 audio 上下文audioContext工具

audioContext

audioContext通过 audioId 跟一个 audio 组件绑定，，，，，通过它可以操作一个 audio 组件。。

audioContext工具的要领列表：

示例代码：

<!-- audio.wxml --><audio  src="{{src}}" id="myAudio" ></audio>

<button type="primary" bindtap="audioPlay">播放</button>
<button type="primary" bindtap="audioPause">暂停</button>
<button type="primary" bindtap="audio14">设置目今播放时间为14秒</button>
<button type="primary" bindtap="audioStart">回到开头</button>

// audio.js
Page({
  onReady: function (e) {
    // 使用 wx.createAudioContext 获取 audio 上下文 context
    this.audioCtx = wx.createAudioContext('myAudio')    this.audioCtx.setSrc('http://ws.stream.qqmusic.qq.com/M500001VfvsJ21xFqb.mp3?guid=ffffffff82def4af4b12b3cd9337d5e7&uin=346897220&vkey=6292F51E1E384E06DCBDC9AB7C49FD713D632D313AC4858BACB8DDD29067D3C601481D36E62053BF8DFEAF74C0A5CCFADD6471160CAF3E6A&fromtag=46')
    this.audioCtx.play()
  },
  data: {    src: ''
  },
  audioPlay: function () {
    this.audioCtx.play()
  },
  audioPause: function () {
    this.audioCtx.pause()
  },
  audio14: function () {
    this.audioCtx.seek(14)
  },
  audioStart: function () {
    this.audioCtx.seek(0)
  }
})