说明：  javasound实现的一个简单的mp3音乐播放器，可播放mp3，wav等多种格式，无需安装jmf，只需jl1.0.jar,mp3spi.jar,tritonus.jar等插件即可实现mp3文件播放
(javasound achieve a simple mp3 music player that can play mp3, wav and many other formats, without having to install jmf, just jl1.0.jar, mp3spi.jar, tritonus.jar and other plug-ins can be achieved mp3 file playback)