System.Web.HttpContext.Current.Request用法

public static void SetRegisterSource()
        {
            if (System.Web.HttpContext.Current.Request["website"] != null)
            {
                string website = System.Web.HttpContext.Current.Request["website"];
                SessionHelper.Set(COOKIE_RegisterSource, website);
                CookieHelper.Add(COOKIE_RegisterSource, website, 365);
            }            
        }