我想创建Url像www.mysite.com/home/details/1/lesson1在mvc与Url.action

取决于你如何定义你的路由。

用于基于约定的路由

routes.MapRoute(
    name: "AdminHomeDetails",
    url: "Admin/Home/Details/{id}/{title}",
    defaults: new { controller = "Home", action = "Details" }
);

或使用此属性路由:

[RoutePrefix("Admin/Home")]
public class HomeController : Controller {
    //GET Admin/Home/Details/1/lesson1
    [Route("Details/{id:int}/{title}")]
    public ActionResult Details(int id, string title) { ... }
}

对于属性路由不要忘记在基于约定的路由之前映射属性路由

public class RouteConfig {
    public static void RegisterRoutes(RouteCollection routes) {
        routes.IgnoreRoute("{resource}.axd/{*pathInfo}");
        routes.MapMvcAttributeRoutes();
        //...and then convention-based routes.
        routes.MapRoute(
            name: "Default",
            url: "{controller}/{action}/{id}",
            defaults: new { controller = "Home", action = "Index" }
        );
    }
}

检查ASP中的属性路由。