C#中HttpWebRequest的用法详解

        /// </summary> 
        /// <param name="URL">网址 </param> 
        /// <param name="cookie">cookies </param> 
        /// <param name="header">句柄 </param> 
        /// <param name="server">服务器 </param> 
        /// <param name="val">服务器 </param> 
        /// <returns> </returns> 
        public static string GetHtml(string URL, string cookie, out string header, string server)
        {
            return GetHtml(URL, cookie, out header, server, "");
        }
        /// <summary> 
        /// Get模式浏览 
        /// </summary> 
        /// <param name="URL">Get网址 </param> 
        /// <param name="cookie">cookie </param> 
        /// <param name="header">句柄 </param> 
        /// <param name="server">服务器地址 </param> 
        /// <param name="val"> </param> 
        /// <returns> </returns> 
        public static string GetHtml(string URL, string cookie, out string header, string server, string val)
        {
            HttpWebRequest httpWebRequest;
            HttpWebResponse webResponse;
            Stream getStream;
            StreamReader streamReader;
            string getString = "";
            httpWebRequest = (HttpWebRequest)HttpWebRequest.Create(URL);
            httpWebRequest.Accept = "*/*";