如何检查文本文件是否在特定路径下生成，是否在C#中生成

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string filePath = @"C:\path\to\file.txt";

        if (File.Exists(filePath))
        {
            Console.WriteLine("文件已生成在指定路径下。");
        }
        else
        {
            Console.WriteLine("文件未生成在指定路径下。");
        }
    }
}

using System;
using System.IO;

class Program
{
    static void Main()
    {
        string directoryPath = @"C:\path\to\directory";
        string fileName = "file.txt";

        FileSystemWatcher watcher = new FileSystemWatcher(directoryPath, fileName);
        watcher.Created += OnFileCreated;
        watcher.EnableRaisingEvents = true;

        Console.WriteLine("正在监视文件系统的更改...");
        Console.ReadLine();
    }

    static void OnFileCreated(object sender, FileSystemEventArgs e)
    {
        Console.WriteLine("文件已生成在指定路径下。");
    }
}