学习编程问题，怎么觉得微软官网上有错

Question

今天学习要用到这个类HttpWebRequest，在msdn上查找  在这个网页上http://msdn.microsoft.com/zh-cn/library/system.net.httpwebrequest_members(v=vs.90).aspx

但是我就觉得很郁闷，我在我的vs里建立了HttpWebRequest类就是点不出GetResponse方法。

然后我又到这个网页http://msdn.microsoft.com/zh-cn/library/system.net.httpwebrequest.getresponse(v=vs.90).aspx复制粘贴下面的代码都有错编译不过去。

HttpWebRequest request = (HttpWebRequest)WebRequest.Create (args[0]);

            // Set some reasonable limits on resources used by this request
            request.MaximumAutomaticRedirections = 4;
            request.MaximumResponseHeadersLength = 4;
            // Set credentials to use for this request.
            request.Credentials = CredentialCache.DefaultCredentials;
            HttpWebResponse response = (HttpWebResponse)request.GetResponse ();

            Console.WriteLine ("Content length is {0}", response.ContentLength);
            Console.WriteLine ("Content type is {0}", response.ContentType);

            // Get the stream associated with the response.
            Stream receiveStream = response.GetResponseStream ();

            // Pipes the stream to a higher level stream reader with the required encoding format. 
            StreamReader readStream = new StreamReader (receiveStream, Encoding.UTF8);

            Console.WriteLine ("Response stream received.");
            Console.WriteLine (readStream.ReadToEnd ());
            response.Close ();
            readStream.Close ();

这是怎么回事？求解？

Answer 1

说了这么大堆你漏掉了最重要的一点就是开发环境，windows phone开发中不支持同步的操作，所有网络操作必须是异步的。你只能用BeginGetResponse。继续去看例子吧。

Answer 2

我前面就试了，不是版本的问题。