单片机仿真8位抢答器

//共阴极数码管编码表 0 - f显示 unsigned char code table[]={0x3f,0x06,0x5b,0x4f,0x66, 0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c, 0x39,0x5e,0x79,0x71}; //变量定义 sbit start_stop = P3^6; sbit reset = P3^7; sbit LE =P3^0; sbit key1 = P1^0; sbit key2 = P1^1; sbit key3 = P1^2; sbit key4 = P1^3; sbit key5 = P1^4; sbit key6 =