显示.c

这是本人在学习51单片机时练习的C程序 [e-mail]

#include <reg51.h>
#define uchar unsigned char
#define uint unsigned int
#define ulong unsigned long
sbit P20=P2^0;
sbit P21=P2^1;

uchar code TABLE[]={0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f};


delay(int t)

{
int r;
int e;

 for(r=0;r<t;r++)
  {
  for(e=0;e<100;e++);
  }
 }




main()
{

uint i=1;
uint j=1;

P2=TABLE[i];
P10=!P20;
delay(100);
i++;
if(i==10)
{i=1;
j=+1;
}
P20=~P20;
P1=TABLE[j];
P21=!P21;
delay(100);

if(j==10)
{
j=1;
}

for(;;)
{}
 }