手機上不能播放，但是電腦瀏覽器上能播放。xml如下：

<xml>
??<ToUserName>o03XGvzBzokfFTaWqaayPipYWLpA</ToUserName>
??<FromUserName>gh_ce3231341318</FromUserName>
??<CreateTime>1466994607761</CreateTime>
??<MsgType>music</MsgType>
??<Music>
????<Title>see?you?again</Title>
????<Description>速7片尾曲</Description>
????<MusicUrl>http:\\sunnyhly.ngrok.cc\WeixinPro/resource/See?You?Again.mp3</MusicUrl>
????<HQMusicUrl>http:\\sunnyhly.ngrok.cc\WeixinPro/resource/See?You?Again.mp3</HQMusicUrl>
????<ThumbMediaId>M3l9QYwHEOVJ1stVPxxBpzv9dAjhvd-D6-FjTW5150idypSRvNbhY4R0-4lCnTmO</ThumbMediaId>
??</Music>
</xml>