输出 菱形

using System;
using System.Collections.Generic;
using System.Text;

class Program
{
static void Main(string[] args)
{

/*
* 测试图形输出 PrintA()
*/
PrintA();
}
#region 输出图形 PrintA()
/*
* *
***
*****
*******
*****
***
*
*/
static void PrintA()
{
//前4行
for (int i = 0; i < 4; i++)
{
Console.WriteLine();
for (int j = 0; j < 3-i; j++)
{
Console.Write(" ");
}
for (int k = 0; k < 2*i+1; k++)
{
Console.Write("*");
}
}
//后3行
for (int i = 0; i < 3; i++)
{
Console.WriteLine();
for (int j = 0; j <=i; j++)
{
Console.Write(" ");
}
for (int k = 0; k < 5-2*i; k++)
{
Console.Write("*");
}
}
Console.WriteLine();
}
#endregion
}