#include<stdio.h>
void main()
{ int a,b,c,d,e,f,g,i;
   i=0;
 while ((a!=0)&&(b!=0))
 { scanf("%d%d",&a,&b);
    if ((a!=0)&&(b!=0))
    {  if((a<1000)||(a>=10000)||(b<1000)||(b>=10000)) printf("Error\n");
     else { for (a=a+1;a<b;a++)
            {          g=a%2;
                if (g==0)
                {   c=a/1000;
                    d=(a-c*1000)/100;
                    e=(a-c*1000-d*100)/10;
                    f=(a-c*1000-d*100-e*10);
                        if ((c!=d)&&(c!=e)&&(c!=f)&&(d!=e)&&(d!=f)&&(e!=f))
                            {  printf("%d  ",a);i++;}
                }
            }
            printf("\ncounter=%d\n",i);
            i=0;
          }
    }
 }
}
为什么在vc上可以运行，在gcc上不行？