本文整理自网络，侵删。
修改FindFirst(Directory+'\*.*', $0000003F, SearchRec) = 0 中的
"\*.*"部分即可找到你所需要的特定文件
例如:\*.txt 表示搜索搜索指定目录下的txt文件
unit Unit1;
interface
uses
Windows, Messages, SysUtils, Variants, Classes, Graphics, Controls, Forms,
Dialogs, StdCtrls;
type
TForm1 = class(TForm)
Label1: TLabel;
Edit1: TEdit;
Memo1: TMemo;
Label2: TLabel;
Button1: TButton;
procedure FormCreate(Sender: TObject);
procedure Button1Click(Sender: TObject);
private
{ Private declarations }
public
{ Public declarations }
Function FindAllFileInADirectory(Directory:string;RetList : TStringList): TStringList;
end;
var
Form1: TForm1;
implementation
{$R *.dfm}
procedure TForm1.FormCreate(Sender: TObject);
begin
memo1.Text:='';
end;
Function TForm1.FindAllFileInADirectory(Directory:string;RetList:TStringList): TStringList;
var
SearchRec: TSearchRec;
begin
if FindFirst(Directory+'\*.*', $0000003F, SearchRec) = 0 then
begin
repeat
RetList.Add(Directory +'\'+ SearchRec.Name);
until (FindNext(SearchRec) <> 0);
end;
FindClose(SearchRec);
end;
procedure TForm1.Button1Click(Sender: TObject);
var
TempList:TStringList;
begin
TempList:=TStringList.Create;
TempList:=FindAllFileInADirectory(Edit1.text,TempList);
memo1.Lines.Clear;
memo1.Lines.Assign(TempList);
TempList.clear;
end;
end. //end unit
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