在C#中如何输出"*"组成的如下三角

来源:百度知道 编辑:UC知道 时间:2024/05/27 05:20:20
*
**
***
****

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

  namespace 棱形
  {
  class Program
  {
  static void Main(string[] args)
  {
  Console.Write("请输入一个数值:");
  int a = Int32.Parse(Console .ReadLine() );
  for (int i = 1; i <= a; i++)
  {
  for (int n = 1; n <= a - i; n++)
  {
  Console.Write(" ");
  }
  for (int j = 1; j <= i; j++)
  {
  Console.Write("* ");
  }
  Console.WriteLine();
  }
  for (int i = 1; i <= a; i++)
  {
  for (int n = 1; n <= i; n++)
  {
  Console.Write(" ");
  }
  for (int j = 1; j <= a - i; j++)
  {
  Console.Write("* ");
  }
  Console.WriteLine();
  }
  Console.ReadLine();
  }
  }
  }
  自己看看

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