XML序列化

        public static string XmlSerializer<T>(T t, Type[] extraTypes)
        {
            XmlSerializer serializer = new XmlSerializer(typeof(FX.SL.Common.ConfigHelp), extraTypes);
            MemoryStream stream = new MemoryStream();
            serializer.Serialize(stream, t);
            string str = Encoding.UTF8.GetString(stream.ToArray(),0,(int)stream.Length);
            return str;
        }