Introduction - If you have any usage issues, please Google them yourself
Code to achieve the basic operation of the binary tree: binary tree to achieve the basic operations (including pre-order, in sequence, after the traversal) readings from the keyboard to use in front of the realization of the basic operation to generate a binary search tree through binary tree traversal, the output of the binary tree leaf nodes through the binary tree traversal, and the maximum tree height use of queues, according to the level of output of the binary tree nodes.