B树的表示及基本操作的实现。 1．掌握B树的存贮结构。 2．实现B树中关键字值的插入及删除操作。 3．练习屏幕图形化的显示。 -Representation of the B-tree and the realization of the basic operations. 1. The master of the B-tree storage structure. 2. Keyword value in the B-tree insert and delete operatio

编程实现B+树，功能要求： ① 插入关键字 ② 删除关键字 ③ 查找关键字-Programming implementation of B+ tree, functional requirements: 1) insert the key word (2) the delete key (3) to find the key