去标签获取网页内容

               string result = item["FContent"].ToString();

                result = result.Replace(" ", " ");

                result = result.Replace("‘‘", "\"");

                result = result.Replace("<", "<");

                result = result.Replace(">", ">");

                result = result.Replace("&", "&");

                result = result.Replace("<br>", "\r\n");

                result = Regex.Replace(result, @"<[\s\S]*?>", string.Empty, RegexOptions.IgnoreCase);