cs13-4.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		
uchar code LED1[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};
uchar code LED2[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};
uchar code LED3[]={0x7e,0xbd,0xdb,0xe7,0xe7,0xdb,0xbd,0x7e};
uchar code LED4[]={0x7f,0x3f,0x1f,0x0f,0x07,0x03,0x01,0x00};
uchar code LED5[]={0xfe,0xfc,0xf8,0xf0,0xe0,0xc0,0x80,0x00};
/*********************************************************/
void delay(uint k)					
{								
uint i,j;							
for(i=0;i<k;i++){					
for(j=0;j<121;j++)					
{;}}								
}								
/***********************************************************/
void main(void)					
{uchar cnt;						
	while(1)						
	{							
  		for(cnt=0;cnt<8;cnt++)		
		{P1=LED1[cnt];			
  		delay(200);}				
	//-----------------------------------------	
		for(cnt=0;cnt<8;cnt++)		
		{P1=LED2[cnt];			
  		delay(200);}				
	//------------------------------------------
		for(cnt=0;cnt<8;cnt++)		
		{P1=LED3[cnt];			
  		delay(200);}				
	//----------------------------------------
		for(cnt=0;cnt<8;cnt++)		
		{P1=LED4[cnt];			
  		delay(200);}				
	//-------------------------------------------
		for(cnt=0;cnt<8;cnt++)		
		{P1=LED5[cnt];			
  		delay(200);}				
	}							
}