1,b树插入
http://www.cnblogs.com/biyeymyhjob/archive/2012/07/25/2608412.html
2,b树删除(5种,不够就借,借不到就合并
https://blog.csdn.net/v_july_v/article/details/6530142
1,b树插入
http://www.cnblogs.com/biyeymyhjob/archive/2012/07/25/2608412.html
2,b树删除(5种,不够就借,借不到就合并
https://blog.csdn.net/v_july_v/article/details/6530142