cs9-5.c

《手把手教你学单片机的C程序设计》及实验程序

#include <REG51.H>		
#define uchar unsigned char	
#define uint unsigned int	
//====================
void delay(uint k)		
{					
uint i,j;				
for(i=0;i<k;i++){			
for(j=0;j<121;j++)		
{;}}					
}						
//====================
void main(void)		
{					
uchar x=57,y=136;			
	P1=~x;				
	delay(3000);		
	P1=~y;				
	delay(3000);			
	P1=x&y;				
	delay(3000);			
	P1=x|y;			
	delay(3000);			
	P1=x^y;				
	delay(3000);			
	P1=x<<1;			
	delay(3000);			
	P1=y<<2;			
	delay(3000);			
	while(1);				
}