.net 添加Cookie的4种方法

//第一种添加cookie方法
        httpcookie mycookie = new httpcookie("userrole");
        mycookie.values["a"] = "a";
        mycookie.values[""] = "b";
        mycookie.expires.adddays(1);
        response.cookies.add(mycookie);
        //response.appendcookie(mycookie);这个也可以添加
        //第一种获取cookie方法
        response.write(request.cookies["userrole"].values["a"].tostring());

        //第二种添加cookie方法
        httpcookie mycookie = new httpcookie("userrole");
        mycookie.values["a"] = "a";
        mycookie.values["b"] = "b";
        mycookie.expires.adddays(1);
        response.cookies.add(mycookie);
        //第二种读取cookie方法
        httpcookie cookie = request.cookies["userrole"];
        response.write(cookie.values["a"].tostring());
        response.write(cookie.values["b"].tostring());

        //第三种添加cookie方法
        httpcookie mycookie = new httpcookie("userrole");
        mycookie.value = "a";
        response.cookies.add(mycookie);
        //第三种读取cookie方法
        response.write(request.cookies["userrole"].value);

        //第四种添加cookie方法
        httpcontext.current.response.cookies.add(new httpcookie("userrole", "超级管理员"));
        response.cookies["userrole"].value = "超级管理员";
        httpcookie cookie = request.cookies["userrole"];
        response.write(cookie.value);
        //第三种读取cookie方法
        response.write(request.cookies["userrole"].value);