TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
  private
    { Private declarations }
  public
    { Public declarations }
  end; TForm2 = class(TForm1)
  private
    { Private declarations }
  public
    { Public declarations }
  end;为什么TForm2在设计阶段看不到那两个按钮呢?