实现对任意给定的二叉树（顶点数自定）建立它的二叉链表存贮结构，并利用栈的五种基本运算（置空栈、进栈、出栈、取栈顶元素、判栈空）实现二叉树的先序、中序、后序三种遍历，输出三种遍历的结果。-Any given realization of the binary tree (self-Vertices) the establishment of its chain store binary structure, and use the five basic computing stack (The s

设置windows窗口置顶，，，在桌面最上边，而且不响应Win+D组合键-Set the windows, on the desktop, window top, top, and not in response to the Win+D key combination