.net 將類實體轉成xml文件

/// <summary>
        /// 序列化
        /// </summary>
        /// <param name="obj">對象</param>
        /// <param name="filename">文件名</param>
        public static void Save(object obj, string filename)
        {
            FileStream fs = null;
            // serialize it...
            try
            {
                fs = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.ReadWrite);
                XmlSerializer serializer = new XmlSerializer(obj.GetType());
                serializer.Serialize(fs, obj);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }

        }

        /// <summary>
        /// 反序列化
        /// </summary>
        /// <param name="type">對象類型</param>
        /// <param name="filename">文件路徑</param>
        /// <returns></returns>
        public static object Load(Type type, string filename)
        {
            FileStream fs = null;
            try
            {
                // open the stream...
                fs = new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.ReadWrite);
                XmlSerializer serializer = new XmlSerializer(type);
                return serializer.Deserialize(fs);
            }
            catch (Exception ex)
            {
                throw ex;
            }
            finally
            {
                if (fs != null)
                    fs.Close();
            }
        }