cs11-5.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	
uchar code SEG7[10]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};
//=======================
void delay(uint k)			
{						
uint i,j;					
for(i=0;i<k;i++){				
for(j=0;j<121;j++)				
{;}}						
}							
//=======================
void main(void)			
{						
uchar cnt=0;				
P0=SEG7[0];P2=0xfe;
delay(1000);
  while(1)				
  {							
	for(cnt=0;cnt<10;cnt++)	
	{						
	  if(cnt<5)continue;		
	  P0=SEG7[cnt];P2=0xfe;
		delay(1000);
	}					
  }						
}