public static string WriteLogFileName(string strLog,string strFileName = "MyLog")
        {
            string strPath = System.Windows.Forms.Application.StartupPath + @"\Log\";
            string strLogPathName = strPath + string.Format("{0:yyyyMMddHHmmssffff}",DateTime.Now).Substring(0,9) + strFileName + "
 
.log";
            //lock (lockerMemoLog)
            {
                try
                {
                    if (!Directory.Exists(strPath))
                    {
                        Directory.CreateDirectory(strPath);
                    }
                    string strLogMessage = string.Empty;
                    StreamWriter swLog;
                    {
                        strLogMessage 
 
= string.Format("{0}:#{1}",DateTime.Now,(strLog));
                    }
                    if (!File.Exists(strLogPathName))
                    {
                        swLog = new StreamWriter(strLogPathName);
                    }
                    else
                    {
                        swLog 
 
= File.AppendText(strLogPathName);
                    }
                    swLog.WriteLine(strLogMessage);
                    swLog.Close();
                    return "0";
                }
                catch (Exception ex)
                {
                    return ex.ToString();
                }
            }
        }