delphi里修改下程序

unit Unit1;
  
interface
  
uses
  Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
  Dialogs, StdCtrls;
  
type
  TForm1 = class(TForm)
    Button1: TButton;
    Edit1: TEdit;
    Button2: TButton;
    Memo1: TMemo;
    OpenDialog1: TOpenDialog;
    procedure Button1Click(Sender: TObject);
  private
    { Private declarations }
  public
    { Public declarations }
  end;
  
var
  Form1: TForm1;
  
implementation
  
{$R *.dfm}
  
function searchfile(path:string):TStringList;
var SearchRec:TSearchRec;
    found:integer;
    list:TStringList;
begin
  list:=TStringList.Create;
  found:=FindFirst(path+'\*.*',faAnyFile,SearchRec);
  while  found=0 do
  begin
    if (SearchRec.Name<>'.')  and (SearchRec.Name<>'..') and (SearchRec.Attr<>faDirectory)
      then List.Add(SearchRec.Name);
    found:=FindNext(SearchRec);
  end;
  FindClose(SearchRec);
  searchfile:=list;
end;
  
procedure TForm1.Button1Click(Sender: TObject);
begin
  Memo1.Lines:=searchfile(Edit1.Text);
end;
  
end.