const innerAudioContext = wx.createInnerAudioContext()
innerAudioContext.autoplay = true
innerAudioContext.src = '../demo.mp3'
innerAudioContext.onPlay(() => {
  console.log('开始播放')
})
innerAudioContext.onCanplay(() => {
  console.log('can play...')
})
innerAudioContext.play();
innerAudioContext.onError((res) => {
  console.log(res)
})
innerAudioContext.onPlay((res) => {
  console.log('play...')
})

平台：微信开发者工具 / ios调试

基础库：2.2.1

代码片段：https://developers.weixin.qq.com/s/fypVMRmq70jy