C++ 打印金字塔星形图案程序

编写一个 C++ 程序，使用 for 循环打印金字塔星形图案。 

#include<iostream>
using namespace std;

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

    cout << "Pyramid Star Pattern\n"; 

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

这个示例程序使用 while 循环打印给定字符的金字塔图案。

#include<iostream>
using namespace std;

int main()
{
	int i = 1, j, k, rows;
    char ch;
     
    cout << "Enter Row = ";
    cin >> rows;

    cout << "Enter Symbol = ";
    cin >> ch;


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

Enter Row = 18
Enter Symbol = $

                  $
                 $$$
                $$$$$
               $$$$$$$
              $$$$$$$$$
             $$$$$$$$$$$
            $$$$$$$$$$$$$
           $$$$$$$$$$$$$$$
          $$$$$$$$$$$$$$$$$
         $$$$$$$$$$$$$$$$$$$
        $$$$$$$$$$$$$$$$$$$$$
       $$$$$$$$$$$$$$$$$$$$$$$
      $$$$$$$$$$$$$$$$$$$$$$$$$
     $$$$$$$$$$$$$$$$$$$$$$$$$$$
    $$$$$$$$$$$$$$$$$$$$$$$$$$$$$
   $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
  $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$
 $$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$$