shuma1-2.c

设计中主要是数态显示

#include<reg51.h>
#define uint unsigned int
#define uchar unsigned char
unsigned char code table0[]={0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90};//段码表共阳极
unsigned char code table2[]={0xFB,0xF7,0xEF,0xDF,0xBF,0x67F};//位码表
uchar i,j;
void delay();
void main()
{
  i=0;
  j=0;
  while(1)
    {
	  i++;
      P0=table0[i];//单片机段码端口
	  delay();
	  if(i==6)i=0;
	  P2=table2[j];//单片机位码端口
	  delay();
	  P2=0xff;//此句很重要哦，不然会出现一个数码管显示两个数
	  delay();
	  j++;
	  if(j==6)j=0;
     }
}
void delay()
{
  uint x,y;
  for(x=10;x>0;x--)
   for(y=10;y>0;y--);
}