基于二维码图书管理系统设计和实现

............................................42XI表格清单表2. 1 SQL语言的动词...............................................................................................16表4. 1 管理员表(Manager)....................................................................................31表4. 2 读者类型表(ReaderType)..........................................................................31表4. 3 读者表(Reader)...........................................................................................32表4. 4 图书表(Book)..............................................................................................32表4. 5 图书复本表(BookCopy)............................................................................33表4. 6 借阅流通表(ReaderBook).........................................................................33