unit Unit1;

interface

uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;

type
  TForm1 = class(TForm)
    Button1: TButton;
    Memo1: TMemo;
    Label1: TLabel;
    procedure Button1Click(Sender: TObject);
  end;

  TMyClass = class
  Public
      FMember1 : Integer;
      FMember2 : Integer;
      FMember3 : WORD;
      FMember4 : Integer;
      Procedure Method();
  End;

var
  Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.Button1Click(Sender: TObject);
var
    Obj : TMyClass;
begin
    Obj := TMyClass.Create();

    with memo1.Lines do
    begin
        Add('對象大小：' + IntToStr(Obj.InstanceSize));
        Add('對象所在地址    ：' + IntToStr(Integer(Obj)));
        Add('FMember1所在地址：' + IntToStr(Integer(@Obj.FMember1)));
        Add('FMember2所在地址：' + IntToStr(Integer(@Obj.FMember2)));
        Add('FMember3所在地址：' + IntToStr(Integer(@Obj.FMember3)));
        Add('FMember4所在地址：' + IntToStr(Integer(@Obj.FMember4)));
    end;

    Obj.Free();
end;

{ TMyClass }

procedure TMyClass.Method;
begin
    //no code
end;

end.