--- comments: true icon: material/graph-outline --- # 7.   树
![树](../assets/covers/chapter_tree.jpg){ width="70%" }
## 本章内容 - [7.1   二叉树](https://www.hello-algo.com/chapter_tree/binary_tree/) - [7.2   二叉树遍历](https://www.hello-algo.com/chapter_tree/binary_tree_traversal/) - [7.3   二叉树数组表示](https://www.hello-algo.com/chapter_tree/array_representation_of_tree/) - [7.4   二叉搜索树](https://www.hello-algo.com/chapter_tree/binary_search_tree/) - [7.5   AVL 树 *](https://www.hello-algo.com/chapter_tree/avl_tree/) - [7.6   小结](https://www.hello-algo.com/chapter_tree/summary/)