A small library, through the system to achieve the basic information of the books in the library for entry, display, modify, and delete operations such as management,
A small library management system involves the following information:

Book information: book bar code, book title, ISBN number, author's name, classification, press, publishing time, price, location (shelf), number of library, the number of pavilion, borrowing number, source (e.g., purchase or donation), donors, etc.

Reader information: number, the reader's name, id number, contact phone number, deposit, readers category, maximum number of lending, has been borrowing number etc.

Library management information: number, readers number and barcode of books, library date, should also date, whether to renew, renew frequency (allowed to renew twice, renew a date should be also extend a month, are not allowed to renew), whether or not to return, if extended, should pay the fine, whether to pay fines and other information and the books information that the reader can initialize () to read data from a text file, entry, display, all kinds of query, modify, delete, statistics, save (writing data to a text file), and other functions;

Can realize the book lending, returned, renew and other business, the business process results in the form of booking management information preservation, can also be initialized to the library management information () to read data from a text file, display, all kinds of query, statistics, save