如何写入/读出Cookie

    protected void Button3_Click(object sender, EventArgs e)
    {//写入Cookie
        HttpCookie nc = new HttpCookie("newcookie");//newcookie是这个cookie的名字
        nc.Values["name"] = "天轰穿";
        nc.Values["age"] = "27";
        nc.Values["dt"] = DateTime.Now.ToString();
        Response.Cookies.Add(nc);                           //把nc添加到浏览器的cookie中
        Response.Write("Cookie写入成功");
    }
    protected void Button4_Click(object sender, EventArgs e)
    {//读出Cookie
        HttpCookie getCookie = Request.Cookies["newcookie"];
        Response.Write(getCookie.Values["name"]);
        Response.Write("<br />"+getCookie.Values["age"]);
        Response.Write("<br />"+getCookie.Values["dt"]);
    }