main.c

4*4键盘程序 (头文件 键盘驱动 主程序 )虽然简单,但对新手 值得一看

#include < at89x51.h >
#include "keydrive.h"
void main ( void )
{ 
 unsigned char temp;
 unsigned char code seg7code[16]=	//用十六进数作为数组下标，可直接取得对应的七段编码字节
{0x3f,0x06,0x5b,0x4f,0x66,0x6d,0x7d,0x07,0x7f,0x6f,0x77,0x7c,0x39,0x5e,0x79,0x71};
   P2=0X00;
   while(1)
      {
	    if(kbbit()!=0)
		  {
		    temp=getch();
		    P2=seg7code[temp];
            while(keyup()==0);
		   }
		}    
}