聽說讀寫

using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading;
using System.Diagnostics;
using System.Reflection.Emit;

using Oracle.DataAccess.Client;
using System.Runtime.InteropServices;
using System.Collections.Concurrent;
namespace ClassLibrary1
{


    public class SourceClass
    {

        [STAThread]
        static void Main(string[] args)
        {
            try
            {
                using (ClassA a = new ClassA())
                {
                }
            }
            catch (Exception)
            {

            }
            try
            {
                ClassB a = new ClassB();
            }
            catch (Exception)//這可不是一個代碼好習慣, 只是為了測試才做成這樣
            {

            }
            Console.WriteLine("Collect");
            GC.Collect();
            Console.WriteLine("End");
            //在我的機器上輸出結果依次是
            //Collect
            //End
            //Finalize
            Console.ReadLine();
        }
        internal class ClassA : IDisposable
        {
            public ClassA()
            {
                throw new Exception("Just A Test");
            }

            public void Dispose()
            {
                Console.WriteLine("Dispose");
            }
        }
        internal class ClassB
        {
            public ClassB()
            {
                throw new Exception("Just B Test");
            }

            ~ClassB()
            {
                Console.WriteLine("Finalize");
            }
        }
    }
}

        internal class ClassA : IDisposable
        {
            public ClassA()
            {
                throw new Exception("Just A Test");
            }

            public void Dispose()
            {
                Dispose(true);
                GC.SuppressFinalize(this);
            }

            public void Dispose(bool disposing)
            {
                //do something
                Console.WriteLine("Dispose");
            }

            ~ClassA()
            {
                this.Dispose(false);
            }
        }