var yi = from yii in db.fenlei
                     where yii.yi == 0
                     select new 
                         {
                           yii.name,
                           fen=from er in yii.fenlei2
                              
                               select new {
                                  er.name,
                                   cen=from cann in er.cenpin
                                       select(cann)
                                 }                         };
谁能在MVC视图中显示这个树状结构的菜单