本文档说明了图书管理系统的数据库的设计，用于指导该系统在数据库存储各方面的内容，为系统开发的程序员、系统分析员作为基准文档。-This document describes the design of the library management system database, used to guide the system in the contents of the database storage system development programmers, systems analysts as a reference document.