cookie使用代码：

 //设置Cookie

            HttpCookie setCookie = new HttpCookie("test");

            setCookie.Values.Add("Name","Admin");

            Response.Cookies.Add(setCookie);

            setCookie.Expires = DateTime.Now.AddSeconds(5);

            //读取Cookie

            HttpCookie getCookie = Request.Cookies["test"];

            string name;

            if (getCookie!=null)

            {

                name = getCookie.Values["Name"];

            }

            //修改Cookie

            int counter = 0;

            if (Request.Cookies["counter"] == null)

                counter = 0;

            else

                counter = counter + 1;

            Response.Cookies["counter"].Value = counter.ToString();

            Response.Cookies["counter"].Expires = DateTime.Now.AddSeconds(10);

            //删除指定的单个Cookie(利用一个过期的Cookie来代替它)

            HttpCookie delCookie = new HttpCookie("test");

            delCookie.Expires = DateTime.Now.AddDays(-1);

            Response.Cookies.Add(delCookie);

            //删除当前域的所有Cookie

            HttpCookie delCookies;

            int cookies = Request.Cookies.Count;

            for (int i = 0; i <= cookies; i++)

            {

                delCookies = Request.Cookies[i];

                delCookies.Expires = DateTime.Now.AddDays(-1);

                Response.Cookies.Add(delCookies);

            }

session使用代码：

  //在Session里面存储一个DataSet

            System.Data.DataSet dataSet = new System.Data.DataSet();

            Session["dataSet"] = dataSet;

            //从Session里取得该DataSet

            dataSet = (System.Data.DataSet)Session["dataSet"];

"SessionID:"+Session.SessionID.ToString()+"</br>";

 "Session的数量:"+Session.Count.ToString()+"</br>";

 "Session的模式:"+Session.Mode.ToString()+"</br>";

 "Session的有效期:"+Session.Timeout.ToString()+"分钟";