COOKIE的使用

COOKIE的写入： DateTime dt=DateTime.Now;     //需要<%@Import Namespace="System"%>，得到当前时间HttpCookie mycookie=new HttpCookie("logname");      //申明新的COOKIE变量mycookie.Value="aa";                                                          //赋值mycookie.Expires=Convert.ToDateTime(dt+TimeSpan.FromDays(1));       //设定过期时间为1天Response.Cookies.Add(mycookie);                            //写入COOKIE 

COOKIE的读取：HttpCookie mycookie=Request.Cookies["username"]; string username=mycookie.Value;