简单Cookie

  private void btnRead_Click(object sender, System.EventArgs e)
  {
   //读取
   TextBox2.Text=Request.Cookies["myName"].Values["firstname"];
  }

  private void btnWrite_Click(object sender, System.EventArgs e)
  {
   
   HttpCookie myCookie=new HttpCookie("myName");
   //设置过期时间为1天
   myCookie.Expires=System.DateTime.Now.AddDays(1);
   //赋值
   myCookie.Values.Add("firstname",TextBox1.Text);
   Response.AppendCookie(myCookie);
  }