如何在C#中等待文件被递归删除的目录

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string directoryPath = "目录路径";
        
        // 创建一个文件系统监听器来监视目录变化
        using (var watcher = new FileSystemWatcher(directoryPath))
        {
            // 设置只监视删除事件
            watcher.NotifyFilter = NotifyFilters.DirectoryName;
            watcher.IncludeSubdirectories = true;
            watcher.Deleted += OnDirectoryDeleted;
            
            // 开始监视
            watcher.EnableRaisingEvents = true;
            
            // 递归删除目录
            RecursivelyDeleteDirectory(directoryPath);
            
            // 等待目录被删除
            Console.WriteLine("等待目录被删除...");
            Console.ReadLine();
        }
    }

    static void OnDirectoryDeleted(object sender, FileSystemEventArgs e)
    {
        Console.WriteLine($"目录 {e.FullPath} 已被删除");
    }

    static void RecursivelyDeleteDirectory(string directoryPath)
    {
        // 删除所有子目录和文件
        foreach (string subdirectory in Directory.GetDirectories(directoryPath))
        {
            RecursivelyDeleteDirectory(subdirectory);
        }
        
        foreach (string file in Directory.GetFiles(directoryPath))
        {
            File.Delete(file);
        }
        
        // 删除空目录
        Directory.Delete(directoryPath);
    }
}