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图书信息包括：登录号、书名、作者名、分类号、出版单位、出版时间、价格、库存量等。试设计一图书信息管理系统，使之能提供以下功能：系统以菜单方式工作（1）采编入库：新购入一本书，经分类和确定书号后登记到图书账目中去，若该书已存在，这库存量增加（2）借阅：若 一种书的现存量大于0，则借出一本，登记借阅者的图书证号和归还期限（3）归还：注销借阅者的登记，改变该书的现存量（过期罚款-选作）（4）清除库存：某书已吴保留价值，将它从图书账目中注销（5）查询功能：－－ 按书名查询 按作者名查询-Book information including: registration number, title, author names, words, publishers, publishing time, price, inventory and so on. Try to design a library information management system, so that it can provide the following features: the menu system to work the way (1) editing storage: Purchase a new book by ISBN classification and identification of the accounts registered after going to the book, if the book already exists, this inventory increase (2) Lending: If one kind of book extant greater than 0, then lend one, registered borrower' s library card and return period (3) restitution: cancel the registration of a borrower to change the book biomass (overdue fines- selected as) (4) clear inventory: a book value has been retained Ng, remove it from the books accounts canceled (5) query functions:- Search by title Search by author
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