C++ 打印空心倒星形金字塔图案程序

编写一个 C++ 程序，使用 for 循环打印空心倒星形金字塔图案。

#include<iostream>
using namespace std;

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

    cout << "Hollow Inverted Pyramid Star Pattern\n"; 

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

此 C++ 示例 使用 while 循环打印给定字符的空心倒金字塔图案。

#include<iostream>
using namespace std;

int main()
{
	int i, j, k, rows;
    char ch;
     
    cout << "Enter Hollow Inverted Pyramid Star Pattern Rows = ";
    cin >> rows;

    cout << "Enter Symbol for Hollow Inverted Pyramid Pattern = ";
    cin >> ch;

    cout << "Hollow Inverted Pyramid Star Pattern\n"; 
    i = rows;

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

Enter Hollow Inverted Pyramid Star Pattern Rows = 15
Enter Symbol for Hollow Inverted Pyramid Pattern = #
Hollow Inverted Pyramid Star Pattern
#############################
 #                         #
  #                       #
   #                     #
    #                   #
     #                 #
      #               #
       #             #
        #           #
         #         #
          #       #
           #     #
            #   #
             # #
              #