单片机AT89C51芯片完成简易秒表的设计(三个8字数码管从0~999秒)设置一...答:include <reg51.h> include <intrins.h> unsigned char data dis_digit;unsigned char key_s, key_v;unsigned char code dis_code[11]={0xc0,0xf9,0xa4,0xb0, // 0, 1, 2, 3 0x99,0x92,0x82,0xf8,0x80,0x90, 0xff};// 4, 5, 6, 7, 8, 9, off unsigned char dis_buf[...