（1）显示年、月、日、星期、时、分、秒

（2）能够通过键盘输入日期和时间的初值

（3）通过功能键能够实现数据储存、查询、上传（串行通讯）功能

（4）时时显示室内的温度和湿度，

（5）通过功能键能够实现外中断和定时中断功能

-(1) shows that year, month, day, week, when, minutes and seconds

(2) can through the keyboard input the date and time of the initial value

(3) through the function keys can realize data storage, inquiry, upload (serial communication) function

(4) always show indoor temperature and humidity,

(5) through the function keys will be able to realize the external interruption and timing interrupt function