C++ 程序打印镜像数字倒三角形图案

使用 for 循环编写一个 C++ 程序来打印镜像数字倒三角形图案。

#include<iostream>
using namespace std;

int main()
{
	int rows;

	cout << "Enter Downward Traingle Mirrored Numbers Rows = ";
	cin >> rows;

	cout << "Downward Traingle of Mirrored Numbers Pattern\n";

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

这个 C++ 示例代码使用 while 循环打印镜像数字的倒三角形。

#include<iostream>
using namespace std;

int main()
{
	int rows, i, j, k;

	cout << "Enter Downward Traingle Mirrored Numbers Rows = ";
	cin >> rows;

	cout << "Downward Traingle of Mirrored Numbers Pattern\n";
	i = 1;

	while (i <= rows)
	{
		j = i;
		while (j <= rows)
		{
			cout << j << " ";
			j++;
		}

		k = rows - 1;
		while (k >= i)
		{
			cout << k << " ";
			k--;
		}

		cout << "\n";
		i++;
	}
}

Enter Downward Traingle Mirrored Numbers Rows = 9
Downward Traingle of Mirrored Numbers Pattern
1 2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 1 
2 3 4 5 6 7 8 9 8 7 6 5 4 3 2 
3 4 5 6 7 8 9 8 7 6 5 4 3 
4 5 6 7 8 9 8 7 6 5 4 
5 6 7 8 9 8 7 6 5 
6 7 8 9 8 7 6 
7 8 9 8 7 
8 9 8 
9