批量删除同类文件的函数

procedure DelFiles(f: string);
var
SearchRec: TSearchRec;
begin
ChDir(ExtractFilePath(f));  //进入文件路径
FindFirst(f, faAnyFile, SearchRec);
repeat
if FileExists(SearchRec.Name) then
begin
//FileSetAttr(SearchRec.Name,0); //修改文件属性为普通属性值
DeleteFile(SearchRec.Name); //删除文件
end;
until(FindNext(SearchRec)<>0);
FindClose(SearchRec);
end;