您需要调用GetResponse()。
Stream receiveStream = response.GetResponseStream ();StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8);txtBlock.Text = readStream.ReadToEnd();

您需要调用GetResponse()。
Stream receiveStream = response.GetResponseStream ();StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8);txtBlock.Text = readStream.ReadToEnd();