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实现了广告灯的功能。具体程序如下：


#include<reg52.H>
unsigned char code table[]={0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,
                            0xfe,0xfd,0xfb,0xf7,0xef,0xdf,0xbf,0x7f,
                         0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,
                      0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe,
                            0x00,0xff,0x00,0xff, 0x01};
unsigned char i;
void delay(void)
{
  unsigned char m,n,s;
  for(m=20;m>0;m--)
  for(n=20;n>0;n--)
  for(s=248;s>0;s--);
}
void main(void)
{
  while(1)
    {
  
   if(table[i]!=0x01)
        {
          P1=table[i];
          i++;
          delay();
    delay();
    delay();
        }
        else
          {
            i=0;
          }
    }
}
  

具体流程如下所示：