void zhengchang(){P0 = 0xfe;//1111 1110 是左边第一位数码管we = 1;//打开位选we = 0; //关闭位选P0 = leddata[shi/10];du = 1; //打开段选du = 0; //关闭段选delay(2);//延时P0 = 0xfd;//1111 1101 只选通第二位数码管we = 1; //打开位选we = 0; //关闭位选P0 = leddata[shi%10]; du = 1;//打开段选du = 0; //关闭段选delay(2);//延时P0 = 0xfb;// 1111 1011 只选通第三位数码管we = 1; //打开位选we = 0; //关闭位选P0 = leddata[fen/10]; du = 1;//打开段选du = 0; //关闭段选delay(2);//延时P0 = 0xf7;//1111 0111 只选通第四位数码管we = 1; //打开位选we = 0; //关闭位选P0 = leddata[fen%10]; du = 1;//打开段选du = 0; //关闭段选delay(2);//延时P0 = 0xef;//1110 1111 只选通第五位数码管we = 1; //打开位选we = 0; //关闭位选P0 = leddata[miao/10]; du = 1;//打开段选du = 0; //关闭段选delay(2);//延时P0 = 0xdf;//1101 1111 只选通第六位数码管we = 1; //打开位选we = 0; //关闭位选P0 = leddata[miao%10];du = 1;//打开段选du = 0; //关闭段选delay(2);//延时we = 1; //打开位选P0 = 0xbf;//1011 1111 只选通第七位数码管we = 0; //关闭位选P0 = leddata[i/10]; //du = 1;//打开段选du = 0; //关闭段选delay(2);//延时P0 = 0x7f;//0111 1111 只选通第八位数码管we = 1; //打开位选we = 0; //关闭位选P0 = leddata[i%10]; du = 1;//打开段选du = 0; //关闭段选delay(2);//延时}
