记录log的方法

 public static void WriteLog(string strLog)
        {
            string pathName = Environment.CurrentDirectory + "\\LOG\\" + DateTime.Now.ToString("yyyyMMdd");
            string FileName = "Execute.log";
            FileName = pathName + "\\" + FileName;
            if (!Directory.Exists(pathName))
            {
                Directory.CreateDirectory(pathName);
            }
            FileStream fileStream = null;
            StreamWriter streamWriter = null;
            try
            {
                if (File.Exists(FileName))
                {
                    //追加记录内容
                    fileStream = new FileStream(FileName, FileMode.Append, FileAccess.Write);
                }
                else
                {
                    //新建文件并记录
                    fileStream = new FileStream(FileName, FileMode.Create, FileAccess.Write);
                }
                streamWriter = new StreamWriter(fileStream);
                streamWriter.WriteLine("【" + DateTime.Now.ToString("yyyy-MM-dd HH:mm:ss") + "】" + strLog);
            }
            finally
            {
                streamWriter.Close();
                fileStream.Close();
            }
        }