cs6-1.c

《手把手教你学单片机的C程序设计》及实验程序

#include <REG51.H>	
unsigned char dis0=0x66;	
unsigned char dis1=0x4f;
unsigned char dis2=0x5b;
unsigned char dis3=0x06;	

void delay(void)		
{					
	unsigned int i,j;		
	for(i=0;i<2;i++)		
	{				
		for(j=0;j<121;j++)
		{;}			
	}				
}					

void main(void)			
{				
while(1)			
	{			
	P0=dis0;
	P2=0xfe;		
	delay();			
	P0=dis1;
	P2=0xfd;	
	delay();		
	P0=dis2;	
	P2=0xfb;	
	delay();			
	P0=dis3;	
	P2=0xf7;	
	delay();			
	}				
}