mvc 怎么配路由阿

mvc 如何配路由阿
有这么个图片
http://localhost:24039/uploadfiles/Delegate/2012-07/37efa8e7-e5b1-4e14-aa52-14173270c85c.jpg

controller = "Load", action = "LoadImage"

C# code

            routes.MapRoute(                "Image",                "uploadfiles/{*fileName}",                new { controller = "Load", action = "LoadImage",fileName=UrlParameter.Optional}                );