编辑代码

using System;

public class HelloWorld
{
    public static void Main()
    {
        for (int i = 2; i < 4; i++)
        {
            for (int g = 0; g < 4 - i; g++)
            Console.Write(" ");
            for (int k = 0; k < i; k++)
            Console.Write("**");
            for (int h = 0; h < 4 - i; h++)
            Console.Write("  ");
            for (int j = 0; j < i; j++)
            Console.Write("**");
            Console.WriteLine();
        }
        for (int l = 0; l < 5; l++)
        {
            for (int u = 0; u < l; u++)
            Console.Write(" ");
            for (int p = 0; p < l; p++)
            Console.Write(" ");
            for (int o = 0; o < 16 - 4 * l; o++)
            Console.Write("*");
            Console.WriteLine();
        }
    }
}