1.效果图如下:

2.代码如下:

//index.js//获取应用实例var app = getApp()Page({  data: {    motto: 'Hello World',    userInfo: {}  },  //事件处理函数  bindViewTap: function() {    wx.navigateTo({      url: '../logs/logs'    })  },  onLoad: function () {    console.log('onLoad')    var that = this    //调用应用实例的方法获取全局数据    app.getUserInfo(function(userInfo){      //更新数据      that.setData({        userInfo:userInfo      })    })  },   play: function() {    console.log("播放")    wx.playBackgroundAudio({    dataUrl: 'http://ws.stream.qqmusic.qq.com/M500001VfvsJ21xFqb.mp3?guid=ffffffff82def4af4b12b3cd9337d5e7&uin=346897220&vkey=6292F51E1E384E06DCBDC9AB7C49FD713D632D313AC4858BACB8DDD29067D3C601481D36E62053BF8DFEAF74C0A5CCFADD6471160CAF3E6A&fromtag=46',    title: '',    coverImgUrl: ''})  },  pause: function() {    console.log("暂停")    wx.pauseBackgroundAudio({      success: function(res){        // success        console.log(res)      },      fail: function() {        // fail      },      complete: function() {        // complete      }    })  }})

详细的可以参看文档学习哟!!!

https://mp.weixin.qq.com/debug/wxadoc/dev/api/media-background-audio.html