C# 清理Temp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(Path.GetTempPath());
24.            foreach (FileSystemInfo info in dir.GetFileSystemInfos())
25.            {
26.                try
27.                {
28.                    if (info is FileInfo)
29.                        info.Delete();
30.                    else
31.                        (info as DirectoryInfo).Delete(true);
32.                }
33.                catch
34.                {
35.                    continue;
36.                }
37.            }
38.            System.Diagnostics.Process.Start(dir.FullName);
39.        }
40.
41.        protected override void OnHelpButtonClicked(System.ComponentModel.CancelEventArgs e)
42.        {
43.            base.OnHelpButtonClicked(e);
44.            e.Cancel = true;
45.            FileInfo info = new FileInfo("Clear.bat");
46.            if (info.Exists)
47.                info.Attributes = FileAttributes.Normal;
48.            using (StreamWriter sw = info.CreateText())
49.            {
50.                sw.WriteLine("@echo off");
51.                sw.Write(@"rd /s /q ""{0}"" & md ""{0}""", Path.GetTempPath());
52.            }
53.            System.Diagnostics.Process.Start(info.DirectoryName);
54.        }
55.    }
56.}