闪烁p0口所有led.txt

来自「单片机入门卡发的点行代码」· 文本 代码 · 共 25 行

#include<at89x52.h>

#define uchar unsigned char
#define uint  unsigned int

void delay(uint a);

void main()
{
  while(1)
  {
    P0=0;
	delay(20000);
	P0=0XFF;
	delay(20000);
  }
}
  

void delay(uint a)
{
  uint b;
  for(b=0;b<a;b++);
}