/// <summary>         /// 获取URL访问的HTML内容 获取https 页面的         /// </summary>         /// <param name="Url">URL地址</param>         /// <returns>HTML内容</returns>         public static string GetWebContent(string Url, CookieContainer cookieContainer)         {             string strResult = "";             try             {                 ServicePointManager.Expect100Continue = true;                 ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;                 HttpWebRequest request = (HttpWebRequest)WebRequest.Create(Url);                 request.CookieContainer = cookieContainer;                 request.Timeout = 30000;                 request.Headers.Set("Pragma", "no-cache");                 HttpWebResponse response = (HttpWebResponse)request.GetResponse();                 Stream streamReceive = response.GetResponseStream();                 Encoding encoding = Encoding.GetEncoding("utf-8");                 StreamReader streamReader = new StreamReader(streamReceive, encoding);                 strResult = streamReader.ReadToEnd();             }             catch             {             }             return strResult;         }

/// <summary>         /// post提交数据到https         /// </summary>         /// <param name="posturl"></param>         /// <param name="postdata"></param>         /// <param name="header"></param>         /// <param name="cookieContainer"></param>         /// <returns></returns>         public static string SetPostHtml(string posturl, string postdata, HttpHeader header, CookieContainer cookieContainer)         {             string restr = "";             ServicePointManager.Expect100Continue = true;             ServicePointManager.SecurityProtocol = SecurityProtocolType.Ssl3;             HttpWebRequest request = null;             HttpWebResponse response = null;             request = (HttpWebRequest)WebRequest.Create(posturl);             request.CookieContainer = cookieContainer;             request.Method = header.method;             request.Referer = header.Referer;             request.ContentType = header.contentType;             byte[] postdatabyte = Encoding.UTF8.GetBytes(postdata);             request.ContentLength = postdatabyte.Length;             request.AllowAutoRedirect = false;             request.KeepAlive = true;             //提交请求             Stream stream;             stream = request.GetRequestStream();             stream.Write(postdatabyte, 0, postdatabyte.Length);             stream.Close();             //接收响应             response = (HttpWebResponse)request.GetResponse();             using (StreamReader reader = new StreamReader(response.GetResponseStream()))             {                 restr = reader.ReadToEnd().ToString();             }             return restr;         }