本文档系图书馆管理的c语言实现，本程序实现了图书的查询、借阅、归还等功能，可用于初学者阅读程序、理解程序，形成程序设计初步技能-This document of the Department of Library Management c language, the program book inquiries, loan, restitution and other functions, can be used for beginners to read the procedures, und