int main(void)
{
    int code = 19;
    int entered;
    printf("Welcom! \n");
    printf("please enter the number: ");
    scanf("%d", &entered);
    while (entered != code)
    {
          printf("Welcom! \n");
          printf("please enter the number: ");
          scanf("%d", &entered);
    }
    printf("Congratulations!\n");
   
    return 0;
}


为什么输入小数（比如0.5)就无限循环？？

谢谢！