ch2_04.cs

《c#技术内幕代码》

using System;
class Disposal
{
   static int refCount=0;
   
   public Disposal()
   {
      System.Console.WriteLine( "Disposal Constructor" );
      refCount++;
   }
   ~Disposal()
   {
      System.Console.WriteLine( "Disposal Destructor. RefCount = {0}", refCount );
      refCount--;
   }
   public void Dispose()
   {
      Finalize();
      GC.SuppressFinalize(this);
   }
}

class CH2_4 {
   public static void Main() 
   {
      Disposal d1 = new Disposal();
      Disposal d2 = new Disposal();
      Disposal d3 = new Disposal();
      
      d1.Dispose();
      d2.Dispose();
      d3.Dispose();
   }
}