[目录结构](%E7%9B%AE%E5%BD%95%E7%BB%93%E6%9E%84.md) [视图映射](%E6%8F%92%E4%BB%B6%E8%AE%BE%E8%AE%A1.md) [控制器继承类](%E6%8E%A7%E5%88%B6%E5%99%A8.md) [ActiveRecord继承类](ActiveRecord%E7%BB%A7%E6%89%BF%E7%B1%BB.md)