/// <summary>
        ////// 1  try catch旨在上端使用，保证对用户的展示
        /// 2  下端不要吞掉异常，隐藏错误是没有意义的,抓住再throw也没意义
        /// 3  除非这个异常对流程没有影响或者你要单独处理这个异常
        /// </summary>
        /// <param name="msg"></param>
        public static void Log(string msg)
        {
            StreamWriter sw = null;
            try
            {
                string fileName = "log.txt";
                string totalPath = Path.Combine(LogPath, fileName);

                if (!Directory.Exists(LogPath))
                {
                    Directory.CreateDirectory(LogPath);
                }
                sw = File.AppendText(totalPath);
                sw.WriteLine(string.Format("{0}:{1}", DateTime.Now, msg));
                sw.WriteLine("***************************************************");
            }
            catch (Exception ex)
            {
                Console.WriteLine(ex.Message);//log
                //throw ex;
                //throw new exception("这里异常");
            }
            finally
            {
                if (sw != null)
                {
                    sw.Flush();
                    sw.Close();
                    sw.Dispose();
                }
            }
        }

/// <summary>
        /// 二进制序列化器
        /// </summary>
        public static List<Programmer> BinarySerialize(List<Programmer> list)
        {
            //使用二进制序列化对象
            string fileName = Path.Combine("路径地址", @"BinarySerialize.txt");//文件名称与路径
            using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite))
            {//需要一个stream，这里是直接写入文件了
                BinaryFormatter binFormat = new BinaryFormatter();//创建二进制序列化器
                binFormat.Serialize(fStream, list);
            }
            //反序列化
            using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite))
            {//需要一个stream，这里是来源于文件
                BinaryFormatter binFormat = new BinaryFormatter();//创建二进制序列化器
                //使用二进制反序列化对象
                fStream.Position = 0;//重置流位置
                List<Programmer> pList = (List<Programmer>)binFormat.Deserialize(fStream);//反序列化对象
                return pList;
            }
        }

 /// <summary>
        /// soap序列化器
        /// </summary>
        public static List<Programmer> SoapSerialize(List<Programmer> list)
        {
            //使用Soap序列化对象
            string fileName = Path.Combine("路径地址", @"SoapSerialize.txt");//文件名称与路径
            using (Stream fStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite))
            {
                SoapFormatter soapFormat = new SoapFormatter();//创建二进制序列化器
                //soapFormat.Serialize(fStream, list);//SOAP不能序列化泛型对象
                soapFormat.Serialize(fStream, list.ToArray());
            }
            using (Stream fStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite))
            {
                SoapFormatter soapFormat = new SoapFormatter();//创建二进制序列化器
                //使用二进制反序列化对象
                fStream.Position = 0;//重置流位置
                List<Programmer> pList = ((Programmer[])soapFormat.Deserialize(fStream)).ToList();//反序列化对象
                return pList;
            }
        }