Introduction - If you have any usage issues, please Google them yourself
Need of special note is this: run the system, the system login screen asks for user name and password, the system provides two types of users, one is the super-user privileges to perform all functions, the other is the sign user only has the sign function, so, here are two default user name and password, a super user, the user name 000, password 000, the other one is the sign user, the user name 111, password 111.
"Attendance" How to compile: