The main difference between them lies in their different functions. The library is mainly a place to collect books, read books and borrow books. There are all kinds of books here, which have the reputation of an ocean of knowledge. It is a place to study and borrow books. The classroom is a place for teaching and educating people. For example, there are teaching facilities such as blackboards, tables and chairs in the classroom. Through a certain organizational form, relatively fixed teachers and students can attend classes in the classroom and master knowledge systematically.