如何在ASP.NET MVC中配置3个级别的URL？

Views
  Company
    Index.aspx
    About.aspx
    Mission.aspx
    AnotherAction.aspx

在您的GlobalAsax.RegisterRoutes(RouteCollection routes)方法中：

public static void RegisterRoutes(RouteCollection routes)
{
  // this will match urls starting with company/about,and then will call the particular
  // action (if it exists)
  routes.MapRoute("mission","company/about/{action}",new { controller = "Company"});
  // the default route goes at the end...
  routes.MapRoute(
    "Default",// Route name
    "{controller}/{action}/{id}",// URL with parameters
    new { controller = "Home",action = "Index",id = "" }  // Parameter defaults
  );
}

在控制器中：

CompanyController
{
  public ViewResult Index() { return View(); }
  public ViewResult About() { return View(); }
  public ViewResult Mission() { return View(); }
  public ViewResult AnotherAction() { return View(); }
}