采用llink-rlink方式存储二叉排序树，编写能够通过键盘输入建立二叉排序树，并在建立完立即在屏幕显示中序遍历结果的程序。-Using llink-rlink way to store binary sort tree, the preparation can be established through the keyboard input binary sort tree, and in the establishment of the screen immediately displays complete traversal of the results of the program.