学习笔记 1

初步学习c#，刚才敲了个小程序，记下来~~Just for fan

 

打印实心菱形

 

 

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

namespace Print
{
    class lingxing
    {
        private int N;
        public lingxing(int x)
        {
            N = x;
        }

        public void F()
        {
            int i, j,k;
            for (i = 1; i <= N; i++)
            {
                
                for(j = N - i; j > 0; j--)                

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


                        for(i = 0; i < N-1; i++)
             {
                for(j = 0; j <= i; j++ )
                 {
                    Console.Write(" ");
                 }
                 for(k = 1;k < 2*(N-1)-2*i; k++)

                 {
                    Console.Write("*");
                 }
                 Console.Write("\n");
             }
        }
    }


    class Testlingxing
    {
        static void Main()
      {
         lingxing a = new lingxing(4);
         //a(4);
          a.F();
       }
    }
}