这是我写的一个比较全面的万年历，其中有设置的功能，还有时间显示功能，希望对大家有帮助-This is what I wrote a more comprehensive calendar, including the function of setting, as well as the time display function, you would like to help

万年历，实现对年月日的显示及设定，单片机开发程序。-Calendar, to achieve the date of display and setting, MCU development program.