asp.net里面操作cookie的类

using System;
using System.Web;

namespace theone.web.tools
{
 /// <summary>
 /// my_cookie 的摘要说明。
 /// </summary>
 public class my_cookie
 {
  public my_cookie()
  {
   //
   // TODO: 在此处添加构造函数逻辑
   //
  }
  public static void DeleteCookie(string cookieName)
  {

   HttpCookie cookie = HttpContext.Current.Request.Cookies[cookieName];

   if (cookie != null)
   {

    cookie.Expires = DateTime.Now;
    HttpContext.Current.Response.Cookies.Add(cookie);
   }
  }

  public static string GetCookie(string name)
  {

   HttpCookie cookie = HttpContext.Current.Request.Cookies[name];
   if (cookie != null)
    return cookie.Value;
   else
    return null;
  }

  public static void SetCookie(string name, string value, int days)
  {
     
   HttpCookie cookie = new HttpCookie(name, value);
   cookie.Expires = DateTime.Now.AddDays(days);
   HttpContext.Current.Response.Cookies.Add(cookie);
  }

 }
}
改良子的