如何编写NopCommerce插件（一）建立一个MVC的项目

public partial class RouteProvider : IRouteProvider
    {
        public void RegisterRoutes(RouteCollection routes)
        {
            routes.MapRoute("Plugin.PromotionRules.CustomerArea.Configure",
                 "Plugins/PromotionRulesCustomerArea/Configure",
                 new { controller = "PromotionRulesCustomerArea", action = "Configure" },
                 new[] { "Nop.Plugin.PromotionRules.CustomerArea.Controllers" }
            );
        }
        public int Priority
        {
            get
            {
                return 0;
            }
        }
    }