libraryManager

代码说明：

  实现图书馆管理功能，包含读者信息添加、图书信息管理、图书借阅、添加新书、图书验收、图书归还、图书查询等等功能(Implement library management features, including reader information to add, library information management, borrow books, add new book, books acceptance, return books, book search functions etc.)