Introduction - If you have any usage issues, please Google them yourself
This system is mainly to complete the record of visitor information and inquiries, to this end, the system must be able to maintain a record of visitors detailed information on the data table, the table and读出数据write operation. At the same time, this system can also maintain user permissions, so the need to preserve the user information system data tables, manage user ID, password and user permissions type. System should be able to record and query the user for each operation, it should no longer maintain a record of user