楼上的以为我傻的啊

#include <stdio.h>
int main (void)
{
    int i,j,n,k;
    printf("Enter n(n<=9):");
    scanf("%d",&n);
    for(i=1;i<=n;i++)
    {
        k=1;
        for(j=0;j<n+i;j++)
            j<=n-i?printf("  "):j<n?printf("%2d",k++):printf("%2d",k--);
        printf("\n");
    }
 printf("\n");
}

强大！

感谢..

12楼的这个语句改成
for(j=0;j<n+i;j++)
   {       if(j<=n-i)
                printf("  ");
            else if(j<n)
                printf("%2d",k++);
            else
                printf("%2d",k--);
    }
可读性会更好一点吧

呵呵，效率高些而已，写程序，，能自己做的就尽量自己做。提高效率和可读性才是最重要的

#include<stdio.h>
void mian（）
{
    int i,j;
    scanf("%d",&n);                                     结果如下：

    for(i=1;i<=n-i;i++)                                                        1
       {                                                                    2     2
           for(j=1;j<=n;j++)                                            3      3     3
              printf(" ");                                            ...................
           for(i=1;i<=n;i++)
              printf("%d",i);
        }
}






}

[ 本帖最后由 一叶飘飘 于 2014-2-27 12:54 编辑 ]