EmptyDir为False
              bEmptyDir:=False;
              if FindFileData.dwFileAttributes=
              FILE_ATTRIBUTE_DIRECTORY then
              begin
                   if sDirName[Length(sDirName)]< >''\'' then
                      DoRemoveDir(sDirName+''\''+tfile)
                   else
                      DoRemoveDir(sDirName+tfile);
                   if not RemoveDirectory(PChar(tfile)) then
                      result:=false
                   else
                      result:=true;
              end
              else
              begin
                   if not DeleteFile(PChar(tfile)) then
                      result:=false
                   else
                      result:=true;
              end;
        until FindNextFile(hFindFile,FindFileData)=false;
        FindClose(hFindFile);
   end
   else
   begin
        ChDir(sCurDir);
        result:=false;
        exit;
   end;
   //如果是