此程序实现，完成液晶部分，数码管显示，中断切换界面同时还进行发光管指示，和蜂鸣器的响声，是一个比较综合的程序，在以后的项目设计中，此程序是一个比较不错的范例！-This program, part of the completion of liquid crystal, digital display, interrupt switch interface LED is also instructed to carry out, and the sound of buzzer, is a mor