C++ 打印右杨辉三角字母图案程序

编写一个C++程序，使用for循环打印右杨辉三角字母图案。

#include<iostream>
using namespace std;

int main()
{
	int rows, i, j, alphabet = 65;

	cout << "Enter Right Pascal Triangle of Alphabets Rows = ";
	cin >> rows;

	cout << "The Right Pascal Triangle Alphabets Pattern\n";

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

	for (i = rows - 1; i >= 0; i--)
	{
		for (j = 0; j < i; j++)
		{
			cout << char(alphabet + j) << " ";
		}
		cout << "\n";
	}
}

使用while循环打印右杨辉三角字母图案的C++程序。

#include<iostream>
using namespace std;

int main()
{
	int rows, i, j, alphabet = 65;

	cout << "Enter Right Pascal Triangle of Alphabets Rows = ";
	cin >> rows;

	cout << "The Right Pascal Triangle Alphabets Pattern\n";
	i = 0;

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

	i = rows - 1;
	while (i >= 0)
	{
		j = 0;
		while (j < i)
		{
			cout << char(alphabet + j) << " ";
			j++;
		}
		cout << "\n";
		i--;
	}
}

Enter Right Pascal Triangle of Alphabets Rows = 14
The Right Pascal Triangle Alphabets Pattern
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 
A B C D E F G H 
A B C D E F G H I 
A B C D E F G H I J 
A B C D E F G H I J K 
A B C D E F G H I J K L 
A B C D E F G H I J K L M 
A B C D E F G H I J K L M N 
A B C D E F G H I J K L M 
A B C D E F G H I J K L 
A B C D E F G H I J K 
A B C D E F G H I J 
A B C D E F G H I 
A B C D E F G H 
A B C D E F G 
A B C D E F 
A B C D E 
A B C D 
A B C 
A B 
A 

本C++示例使用do while循环显示右杨辉三角字母图案。

#include<iostream>
using namespace std;

int main()
{
	int rows, i, j, alphabet = 65;

	cout << "Enter Right Pascal Triangle of Alphabets Rows = ";
	cin >> rows;

	cout << "The Right Pascal Triangle Alphabets Pattern\n";

	i = 0;

	do
	{
		j = 0;
		do
		{
			cout << char(alphabet + j) << " ";

		} while (++j <= i);

		cout << "\n";

	} while (++i <= rows - 1);

	i = rows - 1;
	do
	{
		j = 0;
		do
		{
			cout << char(alphabet + j) << " ";

		} while (++j < i);
		cout << "\n";

	} while (--i > 0);
}

Enter Right Pascal Triangle of Alphabets Rows = 17
The Right Pascal Triangle Alphabets Pattern
A 
A B 
A B C 
A B C D 
A B C D E 
A B C D E F 
A B C D E F G 
A B C D E F G H 
A B C D E F G H I 
A B C D E F G H I J 
A B C D E F G H I J K 
A B C D E F G H I J K L 
A B C D E F G H I J K L M 
A B C D E F G H I J K L M N 
A B C D E F G H I J K L M N O 
A B C D E F G H I J K L M N O P 
A B C D E F G H I J K L M N O P Q 
A B C D E F G H I J K L M N O P 
A B C D E F G H I J K L M N O 
A B C D E F G H I J K L M N 
A B C D E F G H I J K L M 
A B C D E F G H I J K L 
A B C D E F G H I J K 
A B C D E F G H I J 
A B C D E F G H I 
A B C D E F G H 
A B C D E F G 
A B C D E F 
A B C D E 
A B C D 
A B C 
A B 
A