;********WAVE-E6000/T************************************
;*MCU:          AT89C51                                 *
;*MCU-crystal:  6M                                      *
;*Version:      00                                      *
;*Last Updata:                                          *
;*Author:       www.picavr.com                          *
;*Description:  數(shù)碼管循環(huán)顯示0-30                      *
;********************************************************
#include <reg51.h>
unsigned int i,j,k,h;
unsigned char led[10]={0xc0,0xf9,0xa4,0xb0,0x99,0x92,0x82,0xf8,
                       0x80,0x90};
delay(i)
{ while(i--)
   { j=7650;while(j--);}
}

void main(void)
 { while(1)
    { for(k=0;k<=30;k++)
       { P0=led[k/10];  /* P0口顯示十位數(shù) */
         P2=led[k%10];          /* P2口顯示個(gè)位數(shù) */
         if(P0==0xc0)P0=0xff;
         delay(3);
       }
    }
}