在QT平台实现一个音乐播放器，有暂停，快进，快退等基本功能-In QT platform a music player, pause, fast forward, rewind basic functions

运用蜂鸣器制作一个属于自己的音乐，程序已经进行标注，可自行更改，适用于单片机初学者(The use of buzzer to make a music belonging to their own, the program has been marked, can change its own, suitable for beginners microcontroller)