Tree
package tree sealed trait Tree[+A] case class Leaf[A](value: A) extends Tree[A] case class Branch[A](left: Tree[A], right: Tree[A]) extends Tree[A]
posted on 2016-04-23 15:51 JonkeyGuan 阅读(201) 评论(0) 编辑 收藏 举报
package tree sealed trait Tree[+A] case class Leaf[A](value: A) extends Tree[A] case class Branch[A](left: Tree[A], right: Tree[A]) extends Tree[A]
posted on 2016-04-23 15:51 JonkeyGuan 阅读(201) 评论(0) 编辑 收藏 举报
