[开发工具]C# FileSystemWatcher的使用

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace FileWatcher
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void btnStart_Click(object sender, EventArgs e)
        {
            fileSystemWatcher.Path = txtPath.Text.Trim();
            fileSystemWatcher.NotifyFilter = NotifyFilters.FileName | NotifyFilters.Size | NotifyFilters.DirectoryName;
            fileSystemWatcher.IncludeSubdirectories = true;
            fileSystemWatcher.EnableRaisingEvents = true;
        }

        private void fileSystemWatcher_Changed(object sender, System.IO.FileSystemEventArgs e)
        {
            lstMessages.Items.Add("Changed:" + e.FullPath);
        }

        private void fileSystemWatcher_Created(object sender, System.IO.FileSystemEventArgs e)
        {
            lstMessages.Items.Add("Created:" + e.FullPath);
        }

        private void fileSystemWatcher_Deleted(object sender, System.IO.FileSystemEventArgs e)
        {
            lstMessages.Items.Add("Deleted:" + e.FullPath);
        }
    }
}