代码的功能：用C语言实现采用三叉链表存储结构实现二叉树的相关操作，如构造、销毁、插入、遍历等功能，代码中带有详细的注解，十分有利于阅读。算法主要优点在于在遍历时减小了时间复杂大。-Functionality of the code: using C language trifurcate linked list storage structure binary tree operations, such as construction, destruction, insert, traversa