如何从FileSystemWatcher WPF C#传回文件

FileSystemWatcher watcher = new FileSystemWatcher();
watcher.Path = "文件或目录的路径";

watcher.Filter = "文件类型或目录名称";

watcher.NotifyFilter = NotifyFilters.FileName | NotifyFilters.LastWrite | NotifyFilters.DirectoryName;

watcher.Created += new FileSystemEventHandler(OnFileCreated);
watcher.Changed += new FileSystemEventHandler(OnFileChanged);
watcher.Deleted += new FileSystemEventHandler(OnFileDeleted);

private static void OnFileCreated(object source, FileSystemEventArgs e)
{
    // 处理文件创建事件
}

private static void OnFileChanged(object source, FileSystemEventArgs e)
{
    // 处理文件修改事件
}

private static void OnFileDeleted(object source, FileSystemEventArgs e)
{
    // 处理文件删除事件
}