C++ 打印 K 形数字图案程序

编写一个 C++ 程序，使用 for 循环打印 K 形数字图案。

#include<iostream>
using namespace std;

int main()
{
	int i, j, k, rows;
     
    cout << "Enter K Shape Number Pattern Row = ";
    cin >> rows;

    cout << "K Shape Number Pattern\n"; 

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

    for(i = 2; i <= rows; i++)
    {
    	for(j = 1; j <= i; j++)
		{
            cout << j << " ";
        }
        cout << "\n";
    }		
 	return 0;
}

此 C++ 示例 使用 while 循环打印 K 形数字图案。

#include<iostream>
using namespace std;

int main()
{
	int i, j, k, rows;
     
    cout << "Enter K Shape Number Pattern Row = ";
    cin >> rows;

    cout << "K Shape Number Pattern\n";

    i = rows; 

    while( i >= 1)
    {
        j = 1;
    	while( j <= i)
		{
            cout << j << " ";
            j++;
        }
        cout << "\n";
        i--;
    }

    i = 2;
    while( i <= rows)
    {
        j = 1;
    	while( j <= i)
		{
            cout << j << " ";
            j++;
        }
        cout << "\n";
        i++;
    }		
 	return 0;
}

Enter K Shape Number Pattern Row = 9
K Shape Number Pattern
1 2 3 4 5 6 7 8 9 
1 2 3 4 5 6 7 8 
1 2 3 4 5 6 7 
1 2 3 4 5 6 
1 2 3 4 5 
1 2 3 4 
1 2 3 
1 2 
1 
1 2 
1 2 3 
1 2 3 4 
1 2 3 4 5 
1 2 3 4 5 6 
1 2 3 4 5 6 7 
1 2 3 4 5 6 7 8 
1 2 3 4 5 6 7 8 9