获取网页源码问题，可以指教下吗

有一种在浏览器地址栏输入javascript代码显示网页加密前的源代码那么如何用WebClient或者其他的实现用这个javascript代码下载网页的源码啊？?

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你所說的“在浏览器地址栏输入javascript代码显示网页加密前的源代码”指的是什么？能舉個例子嗎？
string html=WebClient.DownloadString("http://www.baidu.com");
试试看，html变量就是存储的html代码。
比如在百度网页在地址栏里把www.baidu.com改成javascript:jannick=document.documentElement.outerHTML;document.write('<body></body>');document.body.innerText=jannick;
回车就显示源代码啦，对于一些加密过源码的网页也可以显示出来，我怎么下载这源码呢？要用上这个javascript代码
用HttpAnalyzer（这是专门分析Http协议的）看看有没有发送请求给服务器，如果有也许下边的例子会对楼主有所帮助
/// <summary>
        /// 通过HttpHeader,cookie,PostData（byte[])返回网页文本字节流并获取HTTP头
        /// </summary>
        /// <param name="server"></param>
        /// <param name="URL"></param>
        /// <param name="byteRequest"></param>
        /// <param name="cookie"></param>
        /// <param name="header"></param>
        /// <returns></returns>
        public static byte[] GetHtmlByBytes(HttpHeader httpHeader, byte[] byteRequest, ref string cookie, out string header)
        {
            HttpWebRequest httpWebRequest;
            HttpWebResponse webResponse;
            Stream getStream;            httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(httpHeader.SubmitWebPag);
            CookieContainer co = new CookieContainer();
            co.SetCookies(new Uri(httpHeader.Host), cookie);
            httpWebRequest.CookieContainer = co;            httpWebRequest.ContentType = httpHeader.ContenType;
            httpWebRequest.Accept = httpHeader.Accept;
            httpWebRequest.Referer = httpHeader.Referer;
            httpWebRequest.UserAgent = httpHeader.UserAgent;
            httpWebRequest.Method = httpHeader.Method;
            httpWebRequest.ContentLength = byteRequest.Length;
            Stream stream;
            stream = httpWebRequest.GetRequestStream();
            stream.Write(byteRequest, 0, byteRequest.Length);
            stream.Close();
            webResponse = (HttpWebResponse)httpWebRequest.GetResponse();
            header = webResponse.Headers.ToString();
            cookie = webResponse.Headers.Get("Set-Cookie");
            getStream = webResponse.GetResponseStream();
            byte[] outBytes = ReadFully(getStream);
            getStream.Close();
            return outBytes;
        }
private string getHtml(string url, string charSet)
        {
            WebClient myWebClient = new WebClient();                myWebClient.Credentials = CredentialCache.DefaultCredentials;
            byte[] myDataBuffer = myWebClient.DownloadData(url);
           string strWebData = Encoding.Default.GetString(myDataBuffer);
            Match charSetMatch = Regex.Match(strWebData, "<meta([^<]*)charset=([^<]*)\"", RegexOptions.IgnoreCase | RegexOptions.Multiline);
            string webCharSet = charSetMatch.Groups[2].Value;
            if (charSet == null || charSet == "")
                charSet = webCharSet;

            if (charSet != null && charSet != "" && Encoding.GetEncoding(charSet) != Encoding.Default)
                strWebData = Encoding.GetEncoding(charSet).GetString(myDataBuffer);
            return strWebData;
        }
document.documentElement.outerHTML获取网页源码
还可使用
Set xmlobject = CreateObject("Microsoft.XMLHTTP")
xmlobject.Open "GET", strURL, False
xmlobject.Send
或webbrowser