本帖最后由 master183 于 2013-2-26 10:19 编辑

#include<reg52.h>

#define DataPort P0
sbit LATCH1=P2^2;
sbit LATCH2=P2^3;

unsigned char code dofly_DuanMa[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
unsigned char code dofly_WeiMa[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f};

void Delay(unsigned int t);
main()
{
unsigned char i=0,num;
unsigned int j;
while(1)
      {
       DataPort=dofly_WeiMa;
       LATCH2=1;     
       LATCH2=0;

       DataPort=dofly_DuanMa[num+i];    这里为什么是num+i？
       LATCH1=1;     
       LATCH1=0;

   Delay(200);
   i++;j++;
   if(8==i)   
     i=0;
   if(j==500)  
     {
  j=0;
  num++;
  if(num==9)
    num=0;
}
      }
}
void Delay(unsigned int t)
{
while(--t);
}