【跟随万一老师的足迹】查找目录下文件，在万一老师的基础上升级下，支持多文件查找 - 文件操作(一)

//sysGetFileList(List,'c:\','*.doc,*.exe');  List通过查找添加多文件
//sysGetFileList(List,'c:\','*.doc');   List通过查找添加单文件
procedure sysGetFileList(List: TStrings; SourFile,FileName: string);
var
S_Path: String;
TmpList,S_FileList: TStringList;
FileRec,SubFileRec: TSearchRec;
I: Integer;
begin
S_Path := IncludeTrailingPathDelimiter(Trim(SourFile));     //单元SysUtils中判断末尾是否包含文件夹路径符号'\'，没有的则补全
if not DirectoryExists(S_Path) then
begin
List.Clear;
Exit;
end;

S_FileList := TStringList.Create;
try
S_FileList.CommaText := FileName;

TmpList := TStringList.Create;
for I := 0 to S_FileList.Count - 1 do
begin
if FindFirst(S_Path + S_FileList[I],faAnyFile,FileRec) = 0 then
repeat
if ((FileRec.Attr and faDirectory) <> 0) then
begin
if ((FileRec.Name <> '.') and (FileRec.Name <> '..')) then
sysGetFileList(TmpList,IncludeTrailingPathDelimiter(S_Path + FileRec.Name),FileName);
end
else
begin
if ((FileRec.Attr and faDirectory) = 0) then
TmpList.Add(S_Path + FileRec.Name);
end;
until FindNext(FileRec) <> 0;
end;
FindClose(FileRec.FindHandle);

if TmpList.CommaText <> '' then     //空文件夹不添加路径
begin
if List.CommaText <> '' then
List.CommaText := List.CommaText + List.Delimiter + TmpList.CommaText
else
List.CommaText := TmpList.CommaText;
end;
finally
FreeAndNil(TmpList);
FreeAndNil(S_FileList);
end;
end;