https://developers.weixin.qq.com/doc/offiaccount/Message_Management/Passive_user_reply_message.html

回复音乐消息参数MusicUrl中含有‘&’字符串，实际发出的音乐消息的链接中却被删除了‘&’字符串

传入的MusicUrl为：http://dl.stream.qqmusic.qq.com/C400001gmO2p3OVg2n.m4a?vkey=9D7FBC8D32485BB8C810D0421A6FE4E7F9BC0D6D6CF2DB86C912850E52C768FB3082F26423BE20B3FB5886D1A8784C085DE98C23973CB317&guid=2020443695&fromtag=1

发送的消息点开的连接为：http://dl.stream.qqmusic.qq.com/C400001gmO2p3OVg2n.m4a?vkey=9D7FBC8D32485BB8C810D0421A6FE4E7F9BC0D6D6CF2DB86C912850E52C768FB3082F26423BE20B3FB5886D1A8784C085DE98C23973CB317guid=2020443695fromtag=1