2021-07-02 51单片机按键控制LED灯逐个点亮

缘由按键控制led灯显示数据加1_有问必答-CSDN问答

#include "REG52.h"
sbit K1 = P3^2;
void main()
{
	unsigned char Xd=0,ss=255;
	while(1)
	{
		if(K1==0&&++Xd==0)
        {
            if(ss>128)ss=128;
            else ss/=2;
            if(ss==0)ss=255;
            while(K1==0);
        }
		P1=ss;
	}
}