// windows端打开微信小程序

    let innerAudioContext = wx.getBackgroundAudioManager();

    innerAudioContext.title = '第一首歌';

    innerAudioContext.src = 'https://webfs.tx.kugou.com/202303221101/2ad8a14e8a3b1159e0f5a7b3d05ec540/v2/b04998f3513abf77abc552e9da2e4aa5/KGTX/CLTX001/b04998f3513abf77abc552e9da2e4aa5.mp3';

先播放一会，然后暂停

innerAudioContext.pause()

切换下一首歌

    innerAudioContext.title = '第二首歌';

    innerAudioContext.src = 'https://webfs.ali.kugou.com/202303221101/c15d38d3e7fdc0905b00883cfa1f638b/KGTX/CLTX001/31ed736d34ada7cea5383712efd54dd0.mp3';

此时播放的是第一首歌