asp.net网页代码清理文件夹下面的数据

代码如下：
View Code
 1         protected void btnDelete(object sender, EventArgs e)
 2         {
 3 
 4             try
 5             {
 6                 System.IO.DirectoryInfo path = new System.IO.DirectoryInfo(Server.MapPath("/Test"));
 7                 deletefile(path);
 8                 Page.RegisterStartupScript("Startup", "<script>alert('清理数据成功！');</script>");
 9             }
10             catch
11             {
12                 Page.RegisterStartupScript("Startup", "<script>alert('清理数据失败！');</script>");
13             }
14         }
15         private void deletefile(System.IO.DirectoryInfo path)
16         {
17             foreach (System.IO.DirectoryInfo d in path.GetDirectories())
18             {
19                 deletefile(d);
20             }
21             foreach (System.IO.FileInfo f in path.GetFiles())
22             {
23                 f.Delete();
24             }
25         }