分数化为有限小数或无限循环小数（c实现）[2]

ode_shang *i;
  long temp;

  i=shang_head;
  temp=0;
  while(i->next!=0) {
    putchar(i->data);
    i=i->next;
    temp++;
    if((temp%76)==0)/*每行输出76个字符*/
      putchar('\n');
  }
  putchar(shang_tail->data);
  putchar('\n');
}

int main(void) {
  long d, n;

  scanf("%ld %ld", &d, &n);
  while((d<1)||(d>100000)||(n<1)||(n>100000)) {
    printf("input is wrong! please inpute again!(1<=d, n<=100000)\n");
    scanf("%ld %ld", &d, &n);
  }
  div(d, n);
  output();

  return 0;