.Net 日志操作

 public static void WriteLogToFile(string logContent)
        {
            
            try
            {
                string directory = ConfigurationSettings.AppSettings["Log"];
                if (!Directory.Exists(directory))
                {
                    Directory.CreateDirectory(directory);
                }
                string filePath = string.Format("{0}\\{1}.log", directory, DateTime.Now.ToString("yyyyMMddHH"));
                mutex.WaitOne();
                FileStream fs = new FileStream(filePath, FileMode.Append, FileAccess.Write);
                StreamWriter streamWriter = new StreamWriter(fs);
                streamWriter.BaseStream.Seek(0, SeekOrigin.End);
                streamWriter.WriteLine(string.Format("{0}:{1}", DateTime.Now.ToString(CultureInfo.CurrentCulture),
                                                     logContent));
                streamWriter.Flush();
                streamWriter.Close();
                mutex.ReleaseMutex();
            }

考虑到多线程，加了一个锁。