以下程序怎么运行不对?哪位朋友帮帮,谢谢!

[SJY79]

unit Unit1;

interface

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

type
TForm1 = class(TForm)
procedure FormCreate(Sender: TObject);
procedure FormDestroy(Sender: TObject);
procedure FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
private
{ Private declarations }
public
{ Public declarations }
ClickList : TStrings;
end;

var
Form1: TForm1;

implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
ClickList := TStrings.Create;
end;

procedure TForm1.FormDestroy(Sender: TObject);
begin
ClickList.SaveToFile(ChangeFileExt(Application.ExeName, '.LOG'));
{save the list}
ClickList.Free ; {destroy the list object}

end;

procedure TForm1.FormMouseDown(Sender: TObject; Button: TMouseButton;
Shift: TShiftState; X, Y: Integer);
begin
ClickList.Add(format('Click at(%d, %d)',[X,Y])); {add a
string to the list}

end;

end.

[ruthfox]

错在这里：ClickList := TStrings.Create;//是个抽象类
应该改成ClickList := TStringList.Create;

[ly_liuyang]

看样没问题的
单步调试了

[SJY79]

非常感激！！