以广州旅游业为背景，设计一个变长记录文件存取类库。程序采用B+树作为索引系统，支持字节流嵌入方式和文件链接方式，以较友好的用户界面，加强程序容错性-Guangzhou tourism industry as the background, to design a variable-length record file access library. Program uses B+ tree as an indexing system to support byte-stream mode and

可以实现对地质大学景点的旅游景点咨询系统。-it is very easy,if you have used this you can outlook our school.

校园导游系统，可根据游客提供的原点和目的地提供多条可选旅游路线-Campus tour guide system, according to the origin and destination of tourists to provide a number of optional tours