请大家帮忙给我讲一下执行过程
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;

namespace Diamond
{
class Program
{
static void Main(string[] args)
{
int q = Convert.ToInt32(Console.ReadLine());
for (int i = 1; i <= q;i++ )
{
for (int j = 1; j <=q-i;j++ )
{
Console.Write(" ");

}


for (int k = 1; k <= 2 * i - 1;k++ )
{
Console.Write("*");

}

Console.WriteLine();



}
for (int i = 1; i <= q - 1;i++ )
{
for (int j = 1; j <= i;j++ )
{
Console.Write(" ");

}
for (int k = 1; k <= 2 * q - 2 * i - 1; k++)
{
Console.Write("*");

}
Console.WriteLine();

}

}
}
}


[解决办法]