unit Unit1;

interface

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

type
  TForm1 = class(TForm)
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}

initialization
  RegisterClass(TForm1);   //必须注册该类，要不然就不能创建该窗体
finalization
  UnRegisterClass(TForm1);   //程序结束时，反注册该窗体类
end.