newplayer，VC＋＋实现，能实现常用播放器的基本功能，如单曲循环，多曲循环等，支持多种文件的播放-newplayer, VC++ to achieve, can be used to achieve the basic functions of player, such as single cycle, multi-song cycle, the player supports a wide range of documents

java语言实现，，接口和抽象类的描述，简单易懂-java language implementation, interfaces and abstract classes describe the

接口和抽象函数，演示继承抽象函数和实现接口-Interfaces and abstract function, presentation and implementation of interfaces inherit abstract function