using System;

public class GarbageC : IDisposable

{

    static void Main(string[] args)

    {

      GarbageC s = new GarbageC();

        s = null;

        GC.Collect();

        Console.ReadLine();

    }

​

    public GarbageC()

    {

        Console.WriteLine("Step1");

    }

​

    public void Dispose()

    {

        Console.WriteLine("Step2");

    }

}

​