说明：  设计一个室内温、湿度仪，使其能够时时显示室内的温度和湿度，显示年、月、日、星期、时、分、秒；能够通过键盘输入日期和时间的初值；通过功能键能够实现数据储存、查询、上传（串行通讯）功能；通过功能键能够实现外中断和定时中断功能。
(Design of an indoor temperature, humidity meter, so that it can always display the indoor temperature and humidity, display year, month, day, week, hours, minutes, seconds keyboard input through the initial date and time function keys can be achieved by data storage, search, uploading (serial communications) capabilities function keys can be achieved by external interrupt and timer interrupt function.)