实现年月日、时分秒、星期的显示功能，用两个按键来实现日期和时间的调整功能，调整要求星期能自动更新，且能实现位调。显示格式：四位年，两位月，两位日，星期字母前三位，两位时，两位分，两位秒。比如：

YYYY-MM-DD WEEK

-Years to achieve day, hour, week display, with two buttons to achieve the adjustment of the date and time functions, regulatory requirements can automatically update a week, and can achieve bit transfer. Display Format: Four years, two months, two days a week the first three letters, two time, two minutes, two seconds. For example: YYYY-MM-DD WEEK