.net core 下的Area注册

   app.UseMvc(routes =>
            {
               
                routes.MapAreaRoute(
                    name: "AreaRoute", 
                    areaName: "Admin",
                    template: "{controller=Code}/{action=Index}");   
            });

   [Area(areaName:"Admin")]
    public class CodeController : Controller
    {
        public IActionResult Index()
        {
            return View();
        }
    }