8051单片机定时程序答:include<reg51.h> //头文件// define uchar unsigned char define uint unsigned int define ulint unsigned long int uchar tcount,tflag=0;uchar flag=2;uchar signtime[8]={0x01,0x07,0x0f,0x00,0x01,0x0f,0x00,0x00};uchar signdate[8]={0x00,0x09,0x0f,0x00,0x04,0x0f,...