delphi向窗体添加属性

声明中private和public

unit Unit1;

interface

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

type
  TForm1 = class(TForm)
    Button1: TButton;
    procedure Button1Click(Sender: TObject);
    procedure FormClick(Sender: TObject);
  private
    { Private declarations }
    FClicks: Integer;              //自定义的字段
    procedure SetClicks(const Value: Integer);
  public
    property Clicks: Integer read FClicks write SetClicks; //设置属性
    { Public declarations }
  end;

var
  Form1: TForm1;

implementation

{$R *.dfm}
procedure TForm1.SetClicks(const Value: Integer);
begin
  FClicks := Value;
end;

procedure TForm1.Button1Click(Sender: TObject);
begin
 with TForm1.Create(self) do
  Show;
end;

procedure TForm1.FormClick(Sender: TObject);
begin
  Inc (FClicks);
  Caption := 'Clicks: ' + IntToStr (FClicks);
end;

end.