Introduction - If you have any usage issues, please Google them yourself
A binary tree data structure to achieve the code: Function is as follows: (1) Create a binary tree (2) recursive algorithm for preorder traversal binary tree (3) non-recursive algorithm for binary tree inorder traversal (4) recursive algorithm for postorder 2 tree (5) Find the number of binary tree leaf nodes (6) according to the level binary tree traversal (7) Find the binary tree depth