#include "reg52.h"
typedef unsigned int u16;
typedef unsigned char u8;
sbit led=P2^0;//ææè¦æ§å¶çledç¯å®ä¹ä¸ºp2.0è¿ä¸ªå£
sbit k1=P2^1;
sbit k2=P2^2;
void delay(u16 i)
{
while(i--);
}//ä¸ä¸ªå»¶æ¶ç¨åº
void main()
{
if(k1==1)
while(1)
{
led=1;
delay(50000); //大约延æ¶450ms
led=0;
if(k2==1)
break;
}
led=0;
}
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