routes.MapRoute(  
       "Action1Html", // action伪静态    
       "{controller}/{action}.html",// 带有参数的 URL    
       new { controller = "Home", action = "Index", id = UrlParameter.Optional }// 参数默认值    
   );  
    routes.MapRoute(  
       "IDHtml", // id伪静态    
       "{controller}/{action}/{id}.html",// 带有参数的 URL    
       new { controller = "Home", action = "Index", id = UrlParameter.Optional }// 参数默认值    
   );  
  
    routes.MapRoute(  
        "ActionHtml", // action伪静态    
        "{controller}/{action}.html/{id}",// 带有参数的 URL    
        new { controller = "Home", action = "Index", id = UrlParameter.Optional }// 参数默认值    
    );  
  
    routes.MapRoute(  
        "ControllerHtml", // controller伪静态    
        "{controller}.html/{action}/{id}",// 带有参数的 URL    
        new { controller = "Home", action = "Index", id = UrlParameter.Optional }// 参数默认值    
    );  
    routes.MapRoute(  
       "Root",  
       "",  
       new { controller = "Home", action = "Index", id = UrlParameter.Optional });//根目录匹配    
  
    routes.MapRoute(  
       name: "Default",  
       url: "{controller}/{action}/{id}",  
       defaults: new { controller = "Home", action = "Index", id = UrlParameter.Optional }//默认配置  
   );