HttpWebResponse字符集问题
很简单的一段代码，但是返回的字符集好像有问题，不知道什么原因，谁能给解释下，谢谢。

C# code

public static void Main()
{
            // Create a request for the URL.         
            WebRequest request = WebRequest.Create(@"http://www.163.com");
            // If required by the server, set the credentials.
            request.Credentials = CredentialCache.DefaultCredentials;
            // Get the response.
            HttpWebResponse response = (HttpWebResponse)request.GetResponse();//此处查看response的CharacterSet属性，为CharacterSet = "ISO-8859-1"，而直接查看网页的源文件为<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
}

很是奇怪，我用的是VS2010

------解决方案--------------------
取得 <meta http-equiv= "content-type " content= "text/html;charset=gb2312 ">
http://topic.csdn.net/u/20080821/07/f127d7d5-f885-4c86-a06f-e539c95cb216.html
------解决方案--------------------
HttpWebRequest myHttpWebRequest = (HttpWebRequest)WebRequest.Create(url); 
HttpWebResponse myHttpWebResponse = (HttpWebResponse)myHttpWebRequest.GetResponse(); 

Console.WriteLine("The encoding method used is: " + myHttpWebResponse.ContentEncoding);
Console.WriteLine("The character set used is :" + myHttpWebResponse.CharacterSet);