frmdemo.pas

来自「Delphi中的DLL封装和调用对象技术」· PAS 代码 · 共 61 行

unit frmDemo;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    Button2: TButton;
    Image1: TImage;
    Button3: TButton;
    procedure Button2Click(Sender: TObject);
    procedure Button1Click(Sender: TObject);
    procedure Button3Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

uses Demo;

{$R *.dfm}

procedure TForm1.Button2Click(Sender: TObject);
var MyCar:TCar;
begin
  MyCar:=TCar.Create;
  try
    MyCar.drive;
  finally
    MyCar.Free;
  end;
end;

procedure TForm1.Button1Click(Sender: TObject);
var Bicycle:TBicycle;
begin
  Bicycle:=TBicycle.Create;
  try
    Bicycle.ride;
  finally
    Bicycle.Free;
  end;
end;

procedure TForm1.Button3Click(Sender: TObject);
begin
  close;
end;

end.