想要这样的路由

不带id:http://test.mymong.com/Home/List.html

带id:http://test.mymong.com/Home/Del/561755ba3af24efa4fc09cef.html

routes.MapRoute(                name: "D",                url: "{controller}/{action}/{id}.html",                defaults: new { controller = "Home", action = "Index" }         );            routes.MapRoute(             name: "E",             url: "{controller}/{action}.html",             defaults: new { controller = "Home", action = "Index" }         );

另外需要在web.config中添加节点 

<system.webServer>

    <modules runAllManagedModulesForAllRequests="true" />

  </system.webServer>