asp.net mvc 路由约束的问题

Question

https://msdn.microsoft.com/zh-tw/library/dd504958(v=vs.108).aspx
你传了三个参数，第三个参数对应的是default，第四个才是constraints

Answer 1

其实是这样的URL
movies/movies/Listdycountries/香港/1
Movies/Movies/Play/8743/1

Answer 2

 // 约束 Movies/ListDyCountries/中文/1
            routes.MapRoute(
                "Movies_list",
                "Movies/{controller}/{action}/{parma}/{id}",
                new { controller = "", action = "" },
                new { parma = @"\D+", id = @"\d+" }
            );            // 约束 Movies/Play/15580/1
            routes.MapRoute(
               "Movies_play",
               "Movies/{controller}/{action}/{id}/{part}",
               new { controller = "", action = "play" },
               new { id = @"\d+", part = @"\d+" }
           );

Answer 3

 //这里有两个路由          
 
            // 约束 Movies/ListDyCountries/中文/1
            context.MapRoute(
                "Movies_list",
                "Movies/{controller}/{action}/{parma}/{id}",
                new { controller = "", action = "ListDyCountries", parma = @"\D+", id = @"\d+" }
            );
 
            // 约束 Movies/Play/15580/1
            context.MapRoute(
               "Movies_play",
               "Movies/{controller}/{action}/{id}/{part}",
               new { controller = "", action = "play", id = @"\d+", part = @"\d+" }
           );
 
            //实际运行后，输入"Movies/ListDyCountries/中文/1" 可转到正确的动作上，
            // 可当输入 "Movies/Play/15580/1" 这样 URL时会转到ListDyCountries这个动作上
            // 就是说都会转到一条的规则上。可我明明把第一条的第一个参数设置成非数字约束，第二条的第一个参数设置成数字约束了的