点阵为啥不听话啊，心都碎了。写个最简单的程序也不听话，就是全屏都亮。。
求大神帮忙，指点迷经
#include<reg51.h>
#define uchar unsigned char
#define uint unsigned int
uchar  table1[]={0x7f,0xbf,0xdf,0xef,0xf7,0xfb,0xfd,0xfe};
uchar  table2[]={0x00,0x00,0x3e,0x41,0x41,0x41,0x3e,0x00};
void delay(uint a)
{
   while(a--);
}

void main()
{
  uchar i;
  while(1)
  {
  for(i=0;i<8;i++)
  {
   P0=table1[i];
   P1=table2[i];
   
   delay(40);
   P0=0X00;
   }
  }
}