使用findfirst实现层级查询指定的文件

[whw123]

使用findfirst执行如下的语句如：findfirst('c:\*爱*.*',faAnyFile,sr)仅仅在c: 的根目录下面执行查询，而现在我想在c:\和c:\的所有子目录中进行查询，如何进行，也就是需要传递两个参数，一个是初始的目录，另外一个就是我要查询的文件名称得部分文件名。那位老大能够实现。请不吝赐教。

[todouwang]

sorry,我回家试一下。

[wilowind]

// ================================================================
// 遍历某个文件夹下某种文件,
// 使用说明
//  _GetFileList(ListBox1.Items,'c:\*.doc');
// _GetFileList(MyTStringList,'c:\*.exe');
// ================================================================
procedure TForm1._GetFileList(AStrings: TStrings ; ASourFile: string);
var sour_path,sour_file: string;
TmpList:TStringList;
FileRec:TSearchrec;
begin

sour_path:=ExtractFilePath(ASourFile);
sour_file:=ExtractFileName(ASourFile);

if not DirectoryExists(sour_path) then
begin
AStrings.Clear;
exit;
end;

TmpList:=TStringList.Create;
TmpList.Clear;

if FindFirst(sour_path+sour_file,faAnyfile,FileRec) = 0 then
repeat
if ((FileRec.Attr and faDirectory) = 0) then
begin
TmpList.Add(sour_path+FileRec.Name)
end;
until FindNext(FileRec)<>0;

SysUtils.FindClose(FileRec);

AStrings.Assign(TmpList);

TmpList.Free;
end;

[zdq801104]

你看看这个，查找文件的代码：
unit mainunit;

interface

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

type
TForm1 = class(TForm)
Memo1: TMemo;
Label1: TLabel;
Label2: TLabel;
ComboBox1: TComboBox;
Edit1: TEdit;
BitBtn1: TBitBtn;
BitBtn2: TBitBtn;
BitBtn3: TBitBtn;
Label3: TLabel;
procedure FormCreate(Sender: TObject);
procedure ComboBox1Change(Sender: TObject);
procedure Edit1Change(Sender: TObject);
procedure BitBtn1Click(Sender: TObject);
procedure BitBtn2Click(Sender: TObject);
procedure BitBtn3Click(Sender: TObject);
private
{ Private declarations }
public
function CurrentIsValidDir(SearchRec:TSearchRec):integer;
procedure RecurSearchFile(CurrentDir:string;SearchFileType:string;SearchResult:TStrings;var Number:integer);
{ Public declarations }
end;

var
Form1: TForm1;
TotalFileNumbers:Integer;
SearchFileType:String;
implementation

{$R *.dfm}

procedure TForm1.FormCreate(Sender: TObject);
begin
TotalFileNumbers:=0;
SearchFileType:='*.txt';
end;

function TForm1.CurrentIsValidDir(SearchRec:TSearchRec):integer;
begin
if ((SearchRec.Attr <> 16) and
(SearchRec.Name<>'.') and
(SearchRec.Name<>'..')) then
Result:=0
else if ((SearchRec.Attr = 16) and
(SearchRec.Name<>'.') and
(SearchRec.Name<>'..')) then
Result:=1
else
Result:=2;
end;

Procedure TForm1.RecurSearchFile(CurrentDir:string;SearchFileType:string;SearchResult:TStrings;var Number:integer);
var
i:integer;
Subdir:TStringList;
SearchRec:TsearchRec;
begin
//第一次调用FindFirst和FindNext查找符合要求的文件
if (FindFirst(CurrentDir+SearchFileType, faAnyFile, SearchRec)=0) then
begin
repeat
if CurrentIsValidDir(SearchRec)=0 then
begin
Inc(Number);
Searchresult.Add(CurrentDir+SearchRec.Name);
end;
application.ProcessMessages ;
until (FindNext(SearchRec) <> 0);
end;
FindClose(SearchRec);

//以下是递归部分，查找各子目录。
Subdir:=TStringList.Create;
if (FindFirst(CurrentDir+'*.*', faDirectory, SearchRec)=0) then
begin
repeat
if CurrentIsValidDir(SearchRec)=1 then
begin
Subdir.Add(SearchRec.Name);
end;
application.ProcessMessages ;
until (FindNext(SearchRec) <> 0);
end;
FindClose(SearchRec);
for i:=0 to Subdir.Count-1 do
begin
RecurSearchfile(CurrentDir+Subdir.Strings[i]+'\',SearchFileType,Searchresult,Number);
end;

//资源释放并返回结果。
Subdir.Free;
end;

procedure TForm1.ComboBox1Change(Sender: TObject);
begin
Case ComboBox1.ItemIndex of
0:SearchFileType:='*.txt';
1:SearchFileType:='*.bmp';
2:SearchFileType:='*.mp3';
3:SearchFileType:='*.*';
end;
end;

procedure TForm1.Edit1Change(Sender: TObject);
begin
if Edit1.Text='' then
BitBtn2.Enabled:=False
else
BitBtn2.Enabled:=True;
end;

procedure TForm1.BitBtn1Click(Sender: TObject);
var
SelectDir:string;
begin
if SelectDirectory(SelectDir, [sdAllowCreate, sdPerformCreate, sdPrompt],0) then
begin
if length(SelectDir) > 3 then
SelectDir:=SelectDir+'\';
Edit1.Text:=SelectDir;
end;
end;

procedure TForm1.BitBtn2Click(Sender: TObject);
begin
memo1.lines.Clear ;
TotalFileNumbers:=0;
RecurSearchFile(Edit1.Text,SearchFileType,memo1.lines, TotalFileNumbers);
Label3.Caption:='查找结果显示:'+'一共在当前目录下找到'+IntToStr(TotalFileNumbers)+'个'+SearchFileType+'类型的文件';
end;

procedure TForm1.BitBtn3Click(Sender: TObject);
begin
Close;
end;

end.

[zdq801104]

要原码的话找我：QQ：178758908

[drift1981]

我的也贴出吧，最后文件名导入memo
procedure TForm1.Button1Click(Sender: TObject);
var s:tstringlist;
begin
s:=tstringlist.Create;
getall('c:\tmp','*爱*.*',s);
memo1.Lines.Assign(s);
end;

procedure TForm1.GetAll(const fpath,fname: String; filelist: TstringList);
var
i,j:integer;
fs: TsearchRec;
begin
i:= findfirst(fpath+'\'+fname,faAnyFile-fadirectory,fs);
//先寻找根目录下的文件
while i=0 do
begin
filelist.add(fpath+'\'+fs.name);
i :=findnext(fs);
end;
FindClose(fs);
//再逐个寻找子目录中的文件
j:= findfirst(fpath+'\'+'*.*',fadirectory,fs);
while j=0 do
begin
if (fs.Name <> '.') and (fs.Name <> '..') then
getall(fPath + '\'+fs.Name, fname,filelist);
j :=findnext(fs);
end;
end;

[drift1981]

加上一句
while j=0 do
begin
if (fs.Name <> '.') and (fs.Name <> '..') then
if((fs.Attr and faDirectory)=faDirectory) then //忘记了，应该加上这一句判断是否是文件夹
getall(fPath + '\'+fs.Name, fname,filelist);
j :=findnext(fs);
end;

[whw123]

非常感谢以上几位的帮助。我马上测试，如果通过，立即结贴

[zdq801104]

drift1981(一包香烟,一把吉他,浪迹天涯!) 老大，你比我的短多了

[zdq801104]

如果通过的话，可比我的好多了

[lw549]

深度优先遍历算法,呵呵