你第二个IF 包括在第一个IF里面了  当输入比5大的数时，显示正确，但是输入比5小或者就是5时，程序执行scanf语句完后，就直接跳到getch()语句，当然不对，我修改了下，仅供参考！
#include<stdio.h>
int main()
{
  int n=5;
  int number;
  printf("Entre a number that between 1 and 10 you want write:\n");
  scanf("%d",&number);
  if(number>n)

     printf("The number is greater than 5");
  else   if(number<n)
     printf("The number is less than 5");
  else printf("The number is same with 5");
   getch();
}

#include <stdio.h>

int main (void)
{
    int n = 5;
    int number;
  
    printf("Entre a number that between 1 and 10 you want write:\n");
    scanf("%d",&number);
  
    if(number>n)        
        printf("The number is greater than 5.\n");
    else
        printf("The number is less than 5.\n");//包括number=5.

    return 0;
}
/*Microsoft Visual C++ 6.0*/

[ 本帖最后由 cxs365 于 2011-5-10 21:25 编辑 ]