这是DS1302+18B20+LCD1602+按键调时 的程序。虽然简单，但调通这个程序还是花费了不少功夫。上电1302即可自动计时，按键部分能够调整时间。18B20每隔1s更新温度采集，由定时器控制。-This is the DS1302+18 B20+ LCD1602+ when the key transfer process. Simple, but stressed through the program or spent a lot of effort. 1302 will automatically power on time, key part of it can adjust the time. 18B20 updated every 1s temperature acquisition, by a timer control.