EA = 1; //开总中断 } void Outside_Int(void) interrupt 2 { EX1 = 0; delay(3); key_temp=0; yin2(); EX1 = 1; } void main(void) { Outside_Init(); while(1) { key1=1; if(key1==0) { delay(2); if(key1==0) { key_temp++; if(key_temp==9999) key_temp=0; yin1(); //延时 30ms，去掉这行会出现按一下中断几次的情况 } while(!key1); } P0 = table[ key_temp /1000]; P1 = LED_W[0]; delay(2); //数码管段值 //点亮第四位数码管 P0 = table[ key_temp %1000/100]; P1 = LED_W[1]; delay(2); //数码管段值 //点亮第三位数码管 P0 = table[ key_temp %100/10]; P1 = LED_W[2]; delay(2); //数码管段值 //点亮第二位数码管 P0 = table[ key_temp %10]; P1 = LED_W[3]; //数码管段值 //点亮第一位数码管 

delay(2); } }