///<summary>/// 获取标准北京时间///</summary>///<returns></returns>public static DateTime GetBeijingTime(){DateTime dt;HttpWebRequest wrt = null;HttpWebResponse wrp = null;try{wrt = (HttpWebRequest)WebRequest.Create("http://www.beijing-time.org/time.asp");wrt.Method = "POST";wrt.UserAgent = "Mozilla/4.0 (compatible; MSIE 6.0; Windows NT 5.2; .NET CLR 1.0.3705;)";wrt.ContentType = "application/x-www-form-urlencoded";wrt.ContentLength = 0;wrt.KeepAlive = false;wrt.ProtocolVersion = HttpVersion.Version10;wrp = (HttpWebResponse)wrt.GetResponse();string year = wrp.LastModified.Year.ToString();string mo
