自己构建的链表。普通的二叉树的各种功能。对栈的应用，行编辑程序。线索二叉树先中后三种线索化及遍历，还有递归的取消线索化。对出栈序列的统计与输出。-Build your own list. Common binary various functions. Applications for the stack, line editing program. After the first of three binary clues clues and traverse, and recursive cancel clues. Statistics and the output of the stack sequence.