C++ 打印直角三角形数字模式程序

编写一个 C++ 程序，使用 for 循环打印直角三角形数字模式。

#include<iostream>
using namespace std;

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

    cout << "Right Angled Triangle Number Pattern\n"; 

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

此 示例 程序使用 while 循环打印直角三角形模式中的数字。

#include<iostream>
using namespace std;

int main()
{
	int i = 1, j, rows;
     
    cout << "Enter Right Triangle Number Pattern Row = ";
    cin >> rows;

    cout << "Right Angled Triangle Number Pattern\n"; 

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

Enter Right Triangle Number Pattern Row = 9
Right Angled Triangle Number Pattern
1 
2 2 
3 3 3 
4 4 4 4 
5 5 5 5 5 
6 6 6 6 6 6 
7 7 7 7 7 7 7 
8 8 8 8 8 8 8 8 
9 9 9 9 9 9 9 9 9