wx.playBackgroundAudio({
     dataUrl: 'http://music.163.com/song/media/outer/url?id=1306400549.mp3',
     success:function(res){
          console.log(res)
          wx.hideLoading();
       that.setData({
         audos: that.data.audo[1],

       })
     }
   })
  },

    //音乐播放
    wx.onBackgroundAudioPlay(function () {
      that.setData({
        audos: that.data.audo[1],

      })
    })

		/**
		 * 监听音乐暂停
		 */
    wx.onBackgroundAudioPause(function () {
      that.setData({
        audos: that.data.audo[0],

      })
    })

		/**
		 * 监听音乐停止
		 */
    wx.onBackgroundAudioStop(function () {
      that.setData({
        audos: that.data.audo[0],

      })
    })