A simple QQ group publishing system developed based on a three-tier architecture, using XML as data storage. 1. You can customize the classification of QQ groups to facilitate management and user viewing. 2. QQ groups are published by users themselves and displayed in a timely manner. QQ groups are reviewed through the background. 3. QQ groups are sorted according to the review status and the level of the QQ group. Backstage account: admin Password: www.sffb.net This system can be well embedded into other websites. In addition, this system is also a good material for learning 3-tier architecture and XML operations.