/// <summary>
        /// 序列化一个对象到文件中
        /// </summary>
        /// <param name="obj">对象</param>
        /// <param name="filename">文件名</param>
        /// <returns>是否正确序列化</returns>
        public static bool SerializeToFile(object obj,string filename)
        {
            try
            {
                Debug("开始序列化到文件->"+filename);
                IFormatter formatter = new BinaryFormatter();
                Stream stream = new FileStream(filename, FileMode.Create, FileAccess.Write, FileShare.None);
                formatter.Serialize(stream, obj);
                stream.Close();
                Debug("序列化到文件完毕！");
                return true;
            }
            catch (Exception ex)
            {
                Info(ex);
                return false;
            }
        }

        /// <summary>
        /// 从文件反序列化一个对象出来
        /// </summary>
        /// <param name="filename">文件名称</param>
        /// <returns>反序列化的结果对象</returns>
        public static object DeserializeFromFile(string filename)
        {
            Debug("开始从文件->" + filename+"-反序列化");
            IFormatter formatter = new BinaryFormatter();
            Stream stream =null;
            object obj = null;
            try
            {
                stream= new FileStream(filename, FileMode.Open, FileAccess.Read, FileShare.Read);
                obj= formatter.Deserialize(stream);
                stream.Close();
                Debug("从文件反序列化成功！");
            }
            catch (Exception ex)
            {
                if (stream != null)
                    stream.Close();
                Info(ex);
                throw ex;
            }
            return obj;

        }