The teaching of this course mainly uses the popular PHP back-end framework thinkphp6.0 version and the front-end adminlte3.0 version to build a general backend system. Knowledge points covered are as follows: 1. TP6 multi-application configuration and route registration; 2. File upload disk configuration and multi-language configuration; 3. TP interface data and cross-domain processing; 4. rbac permission table design and implementation; 5. Unlimited navigation menu Extreme classification and cache clearing; 6. Article publishing, disk configuration, webuploader image asynchronous upload, etc...