System.IO.FileSystemWatcher fsw = new System.IO.FileSystemWatcher();        private void Form1_Load(object sender, EventArgs e)
        {
            fsw.Path = "你要监视的目录";
            fsw.Filter = "*.*";
            fsw.EnableRaisingEvents = true;
            fsw.Created+=new System.IO.FileSystemEventHandler(fsw_Created);        }        private void fsw_Created(object sender, System.IO.FileSystemEventArgs e)
        {
            MessageBox.Show(e.FullPath);
        }
    }