#include<reg51.h>
#define uchar unsigned char
void delay()
{
uchar i,j,k;
for(i=0;i<10;i++)
for(j=0;j<100;j++)
for(k=0;k<6;k++)
{ ;}
}
uchar conv(uchar digit)
{uchar mid;
switch(digit)
{case 0:mid=0x3f;
break;
case 1:mid=0x06;
break;
case 2:mid=0x5b;
break;
case 3:mid=0x4f;
break;
case 4:mid=0x66;
break;
case 5:mid=0x6d;
break;
case 6:mid=0x7d;
break;
case 7:mid=0x07;
break;
case 8:mid=0x7f;
break;
case 9:mid=0x6f;
break;
default:break;
}
return mid;
}
uchar *bcd(uchar k)
{uchar car[4];
car[0]=k%10;
k=k/10;
if(car[0]>9)
{ car[0]=car[0]-10;
k=k+1;}
car[1]=k%10;
k=k/10;
if(car[1]>9)
{ car[1]=car[1]-10;
k=k+1;}
car[2]=k%10;
k=k/10;
if(car[2]>9)
{ car[2]=car[2]-10;
k=k+1;}
car[3]=k%10;
k=k/10;
if(car[3]>9)
{ car[3]=car[3]-10;
k=k+1;}
return car;}
void main(void)
{ uchar xdata temp[10];
uchar i,j;
uchar a[4];
int sum=0;
for(i=0;i<3;i++)
temp=i+1;
for(j=0;j<3;j++)
sum=temp[j]+sum;
for( ; ;)
{a=bcd(sum);
P3=0x01;
for(i=0;i<4;i++)
{P1=conv(a);
delay2();
P3=P3<<1;}
}
其中a=bcd(sum)返回数组首地址的值，为什么不行！ |
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楼主
