23、设计一个读入一串整数构成一颗二叉排序树的程序，从二叉排序树中删除一个结点，使该二叉树仍保持二叉排序树的特性。-Design of a read a string of integers a two binary sort tree procedures, from two binary sort tree delete a node, so that the two fork tree still maintain two binary sort tree characteristics.