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。-Llink-rlink stored using binary sort tree, write through keyboard input the establishment of two binary sort tree, and in the establishment of finished immediately display the results in order traversal procedure.