[计] 遍历
遍历
穿越
穿越
穿透
穿透
In computer science, tree traversal (also known as tree search) is a form of graph traversal and refers to the process of visiting (examining and/or updating) each node in a tree data structure, exactly once, in a systematic way. Such traversals are classified by the order in which the nodes are visited. The following algorithms are described for a binary tree, but they may be generalized to other trees as well.