Root project 'jvm-learning-notes'
+--- Project ':groovy-base' # groovy 基础语法
+--- Project ':java-base' # java 基础
+--- Project ':java-collections' # java 集合类相关
+--- Project ':java-concurrent' # java 并发相关
+--- Project ':java-io' # java I/O 相关
+--- Project ':kotlin-base' # kotlin 基础语法
\--- Project ':kotlin-coroutines' # kotlin 协程
- Gradle多模块项目: https://www.jianshu.com/p/fabfb23274e6