C# 清理Cookies文件实例代码如下：

1.using System;
2.using System.IO;
3.using System.Windows.Forms;
4.
5.namespace WinFormTemp
6.{
7.    public partial class FormTemp : Form
8.    {
9.        public FormTemp()
10.        {
11.            InitializeComponent();
12.            this.HelpButton = true;
13.            this.MaximizeBox = false;
14.            this.MinimizeBox = false;
15.            this.AutoSizeMode = AutoSizeMode.GrowAndShrink; // 禁用手动调整大小。
16.            this.SizeGripStyle = SizeGripStyle.Hide; // 隐藏调整大小手柄。
17.            this.StartPosition = FormStartPosition.CenterScreen; // 在桌面居中显示。
18.        }
19.
20.        protected override void OnLoad(EventArgs e)
21.        {
22.            base.OnLoad(e);
23.            DirectoryInfo dir = new DirectoryInfo(Environment.GetFolderPath(Environment.SpecialFolder.Cookies));
24.            foreach (FileInfo info in dir.GetFiles("*.txt"))
25.            {
26.                info.Delete();
27.            }
28.            System.Diagnostics.Process.Start(dir.FullName);
29.        }
30.
31.        protected override void OnHelpButtonClicked(System.ComponentModel.CancelEventArgs e)
32.        {
33.            base.OnHelpButtonClicked(e);
34.            e.Cancel = true;
35.            FileInfo info = new FileInfo("Clear.bat");
36.            if (info.Exists)
37.                info.Attributes = FileAttributes.Normal;
38.            using (StreamWriter sw = info.CreateText())
39.            {
40.                sw.WriteLine("@echo off");
41.                sw.Write(@"del /f /s /q ""{0}""", Environment.GetFolderPath(Environment.SpecialFolder.Cookies));
42.            }
43.            System.Diagnostics.Process.Start(info.DirectoryName);
44.        }
45.    }
46.}