.net 添加Cookie的4种方法

复制代码 代码如下:
//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);