程序用c++编译，主要目标是实现图书馆对读者信息和图书信息的管理，并实现借书，还书，读者管理，图书管理和退出系统等功能。-Program using c++ compiler, the main objective is to achieve the library of information for readers and book information management, and to achieve library, book, the reader management, library management, and exit the system functions.