用c语言写的单片机时钟，数码管显示，第一个程序是没用定时器的时钟。第二个程序是定时器0的时钟。第三个是定时器2自动重装数字钟。还有可调时间的时钟，

可屏蔽一些按键的可调时钟等几单片机程序。

可屏蔽一些按键的可调时钟等几单片机程序。-Microcontroller using c language clock, digital display, the first program is useless timer clock. The second program is the Timer 0 clock. The third is the auto-reload timer 2 digital clock. There adjustable time clock, can shield some key adjustable clock, several microcontroller program. Some keys can be shielded adjustable clock, several microcontroller program.