MFC例子基础上做的闹钟，可以添加闹钟，并写入文本，可以删除，到点闹钟可以响。需要在程序闹钟响的代码下的路径放入想要的音乐。双缓存技术。-MFC examples done on the basis of the alarm clock, you can add alarm clock, and written text, you can delete, point alarm can ring. Need to program the alarm code into the path of t