---
url: /basics.md
---

* [Structure](./structure.md)
* [Framework Built-in Objects](./objects.md)
* [Runtime Environment](./env.md)
* [Configuration](./config.md)
* [Middleware](./middleware.md)
* [Router](./router.md)
* [Controller](./controller.md)
* [Service](./service.md)
* [Plugin](./plugin.md)
* [Scheduled Tasks](./schedule.md)
* [Extend EGG](./extend.md)
* [Application Startup Configuration](./app-start.md)