说明：  电子脑中、、闹钟源程序，可以实现用单片机开启的电子闹钟功能，万年历电子脑中、、闹钟源程序，可以实现用单片机开启的电子闹钟功能，万年历
(Electronic brain, clock source, you can open a single-chip implementation with electronic alarm clock function, the brain electron calendar, alarm clock source, you can open a single-chip implementation with electronic alarm clock function, calendar)