有几个按钮,怎样在程序里得到当前单击的按钮的caption或name值;

Question

如果控件有其它的类(如tedit),又怎写?例如:
type
  TForm1 = class(TForm)
    Edit1: TEdit;
    Button1: TButton;
    Button2: TButton;
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Edit1Click(Sender: TObject);
  private
    { Private declarations }  public
    { Public declarations }
  end;var
  Form1: TForm1;implementation{$R *.dfm}procedure TForm1.Button1Click(Sender: TObject);
begin
  showmessage(???);
end;procedure TForm1.Button2Click(Sender: TObject);
begin
  showmessage(???);
end;procedure TForm1.Edit1Click(Sender: TObject);
begin
  showmessage(???);
end;end.

Answer 1

showmessage((sender as Tbutton).caption);

Answer 2

procedure TForm1.Button1Click(Sender: TObject);
begin
  showmessage(TButton(Sender).Caption);
end;procedure TForm1.Button2Click(Sender: TObject);
begin
  showmessage(TButton(Sender).Caption);
end;procedure TForm1.Edit1Click(Sender: TObject);
begin
  showmessage(TEdit(Sender).Text);
end;

Answer 3

先谢过楼上两位;主要是下面这一贴,帮帮忙.
http://community.csdn.net/Expert/topic/3467/3467168.xml?temp=.5576593

Answer 4

//两种方法
showmessage(Tbutton(sender).caption);
showmessage((sender as Tbutton).caption);
----------------------------------------------
//对tedit也合适的
procedure TForm1.Edit1Click(Sender: TObject);
begin
  showmessage((sender as Tcontrol).name);
end;