Introduction - If you have any usage issues, please Google them yourself
I made a simple library management system. First, in the library management system through a login screen to enter a user name and password are correct before you can log into the system (to enter the library Zhenghao login: user name 111 and password to log in to 1), after the query into the system , modify, and help select the three menu items, the query can be menu items and books library query query to modify password entry can be modified (because the system is open to students, so the name, student number and other changes do not provide only provide the password changes) to help library and you will see instructions and help.