qworker 传递对象参数

procedure TForm1.dolist(AJob: PQJob);
var
a:TStringList;
begin
a:=TStringList(AJob.Data);

ShowMessage(a.Text);
end ;
procedure TForm1.Button2Click(Sender: TObject);
var
AList: TStringList;
begin
AList := TStringList.Create;
AList.Values['Name'] := 'swish';
AList.Values['Website'] := 'http://blog.qdac.cc';
Workers.Post( dolist
, AList, True, jdfFreeAsObject);
end;