#include "stdio.h"
int mymod(int,int)
main()
{  int s,a,b;
   printf("input a and b :\n");
   scanf("%d%d",&a,&b);
   s=mymod(int,int);
   
}
  int mymod(inta,intb)
  {int c;
     c=a%b;
     return c;
      }

谢谢，你真是我的良师益友。