一个删除路径下所有文件的函数

function TForm2.DeleteDirectory(NowPath: string): Boolean;
var
  search: TSearchRec;
  ret: integer;
  key: string;
begin
  if NowPath[Length(NowPath)] <> '/' then
    NowPath := NowPath + '/';
  key := Nowpath + '*.*';
  ret := findFirst(key, faanyfile, search);
  while ret = 0 do begin
    if ((search.Attr and fadirectory) = faDirectory)
      then begin
      if (Search.Name <> '.') and (Search.name <> '..') then
        DeleteDirectory(NowPath + Search.name);
    end else begin
      if ((search.attr and fadirectory) <> fadirectory) then begin
        deletefile(NowPath + search.name);
      end;
    end;
    ret := FindNext(search);
  end;
  findClose(search);
  removedir(NowPath);
  result := True;
end;