门禁系统,主要包含员工类,管理员类,和测试类,还有访客.可以通过1,指纹,2,员工卡,3,访客按门铃,管理员同意 满足其一都可进来.经测试没有问题,欢迎交流学习-Access control systems, mainly includes employee categories, the administrator category, and the test class, as well as visitors by 1, fingerprints, 2, employee cards, 3