本程序需要1602字符型液晶模块及DS18B20温度传感器支持，通过1602液晶模块显示DS18B20状态及实时温度，正常情况下1602的第一行显示“DS18B20 OK!”，第二行显示实时温度 *

//* 如果DS18B20不存在，则显示“DS18B20 Error Please Check!” *

//* 表示DS18B20错误，请检查，同时蜂鸣器发出“嘀嘀”报警声 *

//* 用手拧住温度探头，就可以看到温度值的变化-This program requires 1602 Character LCD module and DS18B20 temperature sensor support, through the 1602 LCD module displays DS18B20 status and real-time temperature, under normal circumstances the first line of 1602 shows " DS18B20 OK!" , The second line displays real-time temperature*//* If the DS18B20 does not exist, then the show " DS18B20 Error Please Check!" *//* said the DS18B20 error, please check at the same time buzzer sounded, " Didi"　alarm sound*//* hand-twisted to live the temperature probe, you can see that temperature changes