1、鸿蒙系统开发者网站

https://developer.harmonyos.com/

2、搭建开发环境流程

https://developer.harmonyos.com/cn/docs/documentation/doc-guides/installation_process-0000001071425528

3、基础知识

https://developer.harmonyos.com/cn/docs/documentation/doc-guides/basic-fundamentals-0000000000041611

4、开发文档

https://developer.harmonyos.com/cn/documentation