该系统设计并实现了在线查询点播，下载等相关功能，为用户提供了查找、播放和下载音乐等功能。 郑重申明：此作品来源于互联网，仅供学习交流使用，请于下载后24小时内删除，如果喜欢此作品，请下载正版；(The system has designed and realized the related functions such as online query on demand, download and so on. It also provides users with the functio