利用GDI技术绘制桌面时钟，双缓冲技术消除闪屏，多线程播放音乐，界面主要包括刻度、表针、数字时间时钟、数字日期时钟及logo-Technical drawing using GDI desktop clock, double buffering technology eliminates the splash screen, multi-threaded to play music, the interface includes scale, hands, digital time clock,