protected void Page_Load(object sender,EventArgs e)
{
    if (!IsPostBack)
    {
        if (Request.Browser.Cookies)
        {
            if (Request.QueryString["check"] == null)
            {
                HttpCookie cookie = new HttpCookie("testcookie");
                Response.Cookies.Add(cookie);
                Response.Redirect("Default.aspx?check=1");
            }
            else
            {
                HttpCookie cookie = Request.Cookies["testcookie"];
                if(cookie==null)
                {
                    Label1.Text = "enable cookies";
                }
            }
        }
        else
        {
            Label1.Text = "cookies not supported:";
        }
    }
}
 
protected void Button1_Click(object sender,EventArgs e)
{
    HttpCookie cookie = new HttpCookie("userinfo");
    cookie["name"] = TextBox1.Text;
    cookie["email"] = TextBox2.Text;
    //cookie.Expires = DateTime.Now.AddDays(30);
    Response.Cookies.Add(cookie);
    Response.Redirect("Default2.aspx");
 
}

它无法正常工作.