Introduction - If you have any usage issues, please Google them yourself
B) binary tree of some sort of basic operations (1) the use of binary list of the storage form of input from the keyboard to establish a binary sort tree (2) (1) create a binary tree in order traversal and print (3) the preparation method, a binary tree to determine whether the binary sort tree. (4) (1) to establish the binary sort tree, find a tree that does not exist and insert the keyword, and then print the tree