關鍵代碼：

        /// <summary>        /// 獲取網頁HTML源碼        /// </summary>        /// <param name="url">鏈接 eg:http://www.baidu.com/ </param>        /// <param name="charset">編碼 eg:Encoding.UTF8</param>        /// <returns>HTML源碼</returns>        public static string GetHtmlSource(string url, Encoding charset)        {            string _html = string.Empty;            try            {                HttpWebRequest _request = (HttpWebRequest)WebRequest.Create(url);                HttpWebResponse _response = (HttpWebResponse)_request.GetResponse();                using (Stream _stream = _response.GetResponseStream())                {                    using (StreamReader _reader = new StreamReader(_stream, charset))                    {                        _html = _reader.ReadToEnd();                    }                }            }            catch (WebException ex)            {                using (StreamReader sr = new StreamReader(ex.Response.GetResponseStream()))                {                    _html = sr.ReadToEnd();                }            }            catch (Exception ex)            {                _html = ex.Message;            }            return _html;        }

測試代碼：

        public static void GetHtmlSourceTest()        {            string _url = "http://www.baidu.com/";            string _htmlSource = HttpWebRequestUtilsV2.GetHtmlSource(_url, Encoding.UTF8);            Console.WriteLine(_htmlSource);        }

測試效果：

希望有所幫助！