C++ 程序打印左侧帕斯卡星形三角形

编写一个 C++ 程序，使用 for 循环打印左侧帕斯卡星形三角形。

#include<iostream>
using namespace std;

int main()
{
	int i, j, k, rows;
     
    cout << "Enter Left Pascals Star Triangle Row = ";
    cin >> rows;

    cout << "Left Pascals Star Triangle Pattern\n"; 

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

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

此 C++ 示例 使用 while 循环打印给定字符的左侧帕斯卡三角形图案。

#include<iostream>
using namespace std;

int main()
{
	int i = 1, j, k, rows;
    char ch;

    cout << "Enter Left Pascals Star Triangle Row = ";
    cin >> rows;

    cout << "Symbol to print Left Pascals Star Triangle = ";
    cin >> ch;

    cout << "Left Pascals Star Triangle Pattern\n"; 

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

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

Enter Left Pascals Star Triangle Row = 13
Symbol to print Left Pascals Star Triangle = &
Left Pascals Star Triangle Pattern
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