使用TMediaPlayer控件播放文件，播放后自动休眠操作系统。 包含功能: 1 倒计时对话框 2 操作系统休眠 3 支持拖拽文件到窗口 -Use TMediaPlayer control to play the file, the player automatically sleep the operating system. Contains the features: 2 operating system, a countdown dialog hibernate 3