C++ 程序在正方形的四边打印相同的数字

使用 for 循环编写一个 C++ 程序，在正方形图案的四边打印相同的数字。

#include<iostream>
using namespace std;

int main()
{
	int i, j, k, min, rows;
     
    cout << "Enter Sqaure Number Rows = ";
    cin >> rows;

    cout << "Print Same Number in All Sides of a Square Pattern\n"; 

    for(i = 1; i <= rows; i++)
    {
    	for(j = 1; j <= rows; j++)
		{
            min = i < j? i: j;
            cout << rows - min + 1 << " ";
        }
        for(k = rows - 1; k >= 1; k--)
        {
            min = i < k? i:k;
            cout << rows - min + 1 << " ";
        }
        cout << "\n";
    }	

    for(i = rows - 1; i >= 1; i--)
    {
    	for(j = 1; j <= rows; j++)
		{
            min = i < j? i:j;
            cout << rows - min + 1 << " ";
        }
        for(k = rows - 1; k >= 1; k--)
        {
            min = i < k? i:k;
            cout << rows - min + 1 << " ";
        }
        cout << "\n";
    }
	
 	return 0;
}

这个 C++ 示例 使用 while 循环打印一个四边具有相同数字的正方形图案。

#include<iostream>
using namespace std;

int main()
{
	int i = 1, j, k, min, rows;
     
    cout << "Enter Sqaure Number Rows = ";
    cin >> rows;

    cout << "Print Same Number in All Sides of a Square Pattern\n"; 

    while( i <= rows)
    {
        j = 1;
    	while( j <= rows)
		{
            min = i < j? i: j;
            cout << rows - min + 1 << " ";
            j++;
        }
        k = rows - 1;
        while( k >= 1)
        {
            min = i < k? i:k;
            cout << rows - min + 1 << " ";
            k--;
        }
        cout << "\n";
        i++;
    }	

    i = rows - 1;
    while( i >= 1)
    {
    	j = 1;
    	while( j <= rows)
		{
            min = i < j? i: j;
            cout << rows - min + 1 << " ";
            j++;
        }
        k = rows - 1;
        while( k >= 1)
        {
            min = i < k? i:k;
            cout << rows - min + 1 << " ";
            k--;
        }
        cout << "\n";
        i--;
    }
	
 	return 0;
}

Enter Sqaure Number Rows = 9
Print Same Number in All Sides of a Square Pattern
9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 
9 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 9 
9 8 7 7 7 7 7 7 7 7 7 7 7 7 7 8 9 
9 8 7 6 6 6 6 6 6 6 6 6 6 6 7 8 9 
9 8 7 6 5 5 5 5 5 5 5 5 5 6 7 8 9 
9 8 7 6 5 4 4 4 4 4 4 4 5 6 7 8 9 
9 8 7 6 5 4 3 3 3 3 3 4 5 6 7 8 9 
9 8 7 6 5 4 3 2 2 2 3 4 5 6 7 8 9 
9 8 7 6 5 4 3 2 1 2 3 4 5 6 7 8 9 
9 8 7 6 5 4 3 2 2 2 3 4 5 6 7 8 9 
9 8 7 6 5 4 3 3 3 3 3 4 5 6 7 8 9 
9 8 7 6 5 4 4 4 4 4 4 4 5 6 7 8 9 
9 8 7 6 5 5 5 5 5 5 5 5 5 6 7 8 9 
9 8 7 6 6 6 6 6 6 6 6 6 6 6 7 8 9 
9 8 7 7 7 7 7 7 7 7 7 7 7 7 7 8 9 
9 8 8 8 8 8 8 8 8 8 8 8 8 8 8 8 9 
9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9 9