该系统实现了用户登录注册、在线购买MP3、结账处理和帐户管理等功能，-According to the software engineering theory, this paper describes the course of developing this system ranging from system analysis, feasibility analysis, back-ground database design and front-end function modules

简易的 mp3播放器 带频谱分析的 支持URL-Simple mp3 player with spectrum analysis support URL