cookies示例

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<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="Default.aspx.cs" Inherits="实例5_1.Default" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;

namespace 实例5_1
{
 public partial class Default : System.Web.UI.Page
 {
 protected void Page_Load(object sender, EventArgs e)
 {
 if (!Page.IsPostBack)
 {
 if (Request.Cookies["userName"] != null)
 {
 Response.Write(Request.Cookies["userName"].Value + "你好，欢迎再次光临！" + "");
 if (Request.Cookies["acceNum"] != null)
 {
 int num = Convert.ToInt32(Request.Cookies["acceNum"].Value) + 1;
 HttpCookie acceNumCookie = new HttpCookie("acceNum", num.ToString());
 Response.Cookies.Add(acceNumCookie);
 acceNumCookie.Expires = DateTime.MaxValue;
 Response.Write("你是第" + num + "次访问本站！" + "");

}
 if (Request.Cookies["acceTime"] != null)
 {
 Response.Write("你上次登录的时间是：" + Request.Cookies["acceTime"].Value + "");
 }
 }
 else
 {
 Response.Write("你好！你是第一次光临本站！请登录。 ");
 HttpCookie acceNumCookie = new HttpCookie("acceNum", "1");
 Response.Cookies.Add(acceNumCookie);
 acceNumCookie.Expires = DateTime.MaxValue;

}
 }
 }
 protected void Button1_Click(object sender, EventArgs e)
 {
 HttpCookie acceTimeCookie = new HttpCookie("acceTime", DateTime.Now.ToLongDateString() + DateTime.Now.ToLongTimeString());
 Response.Cookies.Add(acceTimeCookie);
 acceTimeCookie.Expires = DateTime.MaxValue;
 HttpCookie userNameCookie = new HttpCookie("userName", DateTime.Now.ToLongDateString() + DateTime.Now.ToLongTimeString());
 Response.Cookies.Add(userNameCookie);
 userNameCookie.Expires = DateTime.MaxValue;
 Response.Write("你好，登录成功！已记录了您的登录信息！" + " ");
 }
 protected void Button2_Click(object sender, EventArgs e)
 {

}
}
}

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