监视文件或文件夹

    public class watcher
    {
        public static void Main(string[] args)
        {
            if (args.Length != 1)
            {
                Console.WriteLine("usage:Watcher.exe(directory)");
                return;
            }

            FileSystemWatcher watcher = new FileSystemWatcher();
            watcher.Path = args[0];
            watcher.NotifyFilter = NotifyFilters.LastAccess | NotifyFilters.LastWrite | NotifyFilters.FileName | NotifyFilters.DirectoryName;

            //Listenging the text files
            watcher.Filter  = "*.*";
            watcher.Changed += new FileSystemEventHandler(onChanged);
            watcher.Created += new FileSystemEventHandler(onChanged);
            watcher.Deleted += new FileSystemEventHandler(onChanged);
            watcher.Renamed += new RenamedEventHandler(onRenamed);
            watcher.EnableRaisingEvents = true;

            //waiting for quit
            Console.WriteLine("Press\'q\' to quit the sample.");
            while (Console.Read() != 'q') ;
            Console.ReadKey();
        }
        public static void onChanged(object sender, FileSystemEventArgs e)
        {
            Console.WriteLine("file:" + e.FullPath + " " + e.ChangeType);
        }
        public static void onRenamed(object sender, RenamedEventArgs e)
        {
            Console.WriteLine("File:{0} renamed to {1}",e.OldFullPath,e.FullPath);
        }
   
    }