unit1.pas

DELPHI经典程序

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Label1: TLabel;
    Button1: TButton;
    Button2: TButton;
    Button3: TButton;
    Button4: TButton;
    Edit1: TEdit;
    procedure Button4Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button2Click(Sender: TObject);
    procedure Edit1Change(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.DFM}

procedure TForm1.Button1Click(Sender: TObject);
begin
    Label1.ShowAccelChar := not Label1.ShowAccelChar; //Shift+T
end;

procedure TForm1.Button2Click(Sender: TObject);
begin
    Label1.AutoSize := not Label1.AutoSize;
    if not Label1.AutoSize then
      begin
         Label1.Height := 35;
         Label1.Width := 160;
      end;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
    case Label1.Layout of
       tlTop:
            Label1.Layout := tlCenter;
       tlCenter:
            Label1.Layout := tlBottom;
       tlBottom:
            Label1.Layout := tlTop;
    end;
end;

procedure TForm1.Button4Click(Sender: TObject);
begin
    Label1.Transparent := not Label1.Transparent;
end;


procedure TForm1.Edit1Change(Sender: TObject);
begin
    Label1.Caption := Edit1.Text;
end;

end.