请问怎么用idHttp的POST上传一个文件到服务器上?
procedure TForm1.Button4Click(Sender: TObject);
var
   Source: TMemoryStream;
  Response: TStringStream;
begin
     Response := TStringStream.Create('');
     Source:= TMemoryStream.Create;
     Source.LoadFromFile('c:/11.doc');
     IdHTTP1.Post('http://192.168.0.1/temp/temp.doc', Source, Response);
end;
为什么不行,高手请解决。谢谢~~~~~~~~~~~~~``````