private void Page_Load(object sender, System.EventArgs e)
{
// 在此处放置用户代码以初始化页面
     if(File.Exists(@"http://localhost/new/2006/08/30/200608306314854.txt"))
     {
Response.Write("文件不存在");
     }
else
     {
File.Delete(@"http://localhost/new/2006/08/30/200608306314854.txt");
Response.Write("<script language=javascript>alert('文件                         http://localhost/new/2006/08/30/200608306314854.txt已删除!');</script>");
     }
}