我想用AT89C51、74LS245、7段共阴数码管做一个电子时钟,用Proteus仿真...答:unsigned char seg[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,0x80,0x90};unsigned char con[6]={0x1,0x2,0x4,0x8,0x10,0x20};unsigned char mm=0;unsigned char ss=0;unsigned char hh=0;unsigned char count=100;unsigned char time[6];unsigned char xa=1;unsigned char...