In the project, it will be carried out by using c ++ filing statements to follow the book lending system in a library. Reader information (reader.txt): ID NO FIRST NAME LAST NAME member number TELEPHONE DATE OF BIRTH Task The number of books he can buy Book information (Books.txt): ISBN Book Title Author name Author surname topic Type Number of pages borrowed file (Odunc.txt): ISBN ID NO borrowing date Date of return An additional file that keeps users in the program should be created (users.txt). When the user program is run, the user must enter his user name and password, if it is defined in the system, the program should not run, if not. It should also record the user's start and end times. The following menu options should appear before the user. 1- Reader registration 2- Update reader record 3- Reader deletion (When the reader is deleted, the reader's borrowings must return.) 4- List of books on the reader 5- borrowing a reader book 6- Reader book return 7- Adding books 8- Deleting a book 9- Book editing