private static void Main(string[] args)
        {
            var watcher = new FileSystemWatcher
                          {
                              IncludeSubdirectories = false,
                              Path = @"E:\test",
                              Filter = "*.docx",
                              EnableRaisingEvents = true,
                              NotifyFilter = NotifyFilters.FileName | NotifyFilters.Size | NotifyFilters.Security 
                          };
            watcher.Changed += (s, e) =>
                               {
                                   if (e.FullPath.Contains("~$"))return;
                                   if(e.ChangeType==WatcherChangeTypes.Changed)
                                   Debug.WriteLine("rrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrrr");
                               };
            Console.ReadKey();
        }