sbit key_up=P2^3; sbit key_down=P2^4; void delay(unsigned char i); //us延时函数 void delay1ms(unsigned int ms)//ms延迟函数 void init_ds18b20();//DS18B20的初始化函数 void UsartInit(); void tempnum_group(); void writebyte(uchar dat); uchar str1[]={"DS18B20_num:0 "}; uchar ...