Page({

  testButtonClick:function(){

  wx:playBackgroundAudio({

    dataUrl: ‘/music/凯瑟喵 - 撒野.mp3’

    title: ‘’

    coverImgUrl: ‘’

    success: function(res) {},

    fail: function(res) {},

    complete: function(res) {},

  })

我直接这样为什么不能播放呢