变态类集锦

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

namespace ConsoleApplication1
{
    class BianTaiClass1
    {
        private BianTaiClass1()
        {

        }

        public static void SayHello()
        {
            Console.WriteLine("Hello World!");
        }
    }

    class BianTaiClass2
    {
        [Obsolete("就不给你用！",true)]
        public BianTaiClass2()
        {
           
        }

        public static void SayHello()
        {
            Console.WriteLine("Hello World!");
        }
    }

    class BianTaiClass3
    {
        public BianTaiClass3()
        {
            throw new Exception("此路是我开，此树是我栽，要想过此路，留下买路财。");
        }

        public static void SayHello()
        {
            Console.WriteLine("Hello World!");
        }
    }

    class BianTaiClass4
    {
        public BianTaiClass4(int p,out int i)
        {
            i=p%10;
        }
    }

    class Program
    {
        static void Main(string[] args)
        {
            //BianTaiClass1 b1 = new BianTaiClass1();

            //BianTaiClass2 b2 = new BianTaiClass2();

            //BianTaiClass3 b3 = new BianTaiClass3();

            int test = 14526;
            new BianTaiClass4(test,out test);
            Console.WriteLine(test);
            Console.Read();
        }
    }
}