https://repository.apache.org/content/repositories/releases/

一些网站

https://java-design-patterns.com/patterns/

https://search.maven.org/

仓库服务
https://developer.aliyun.com/mvn/guide

代码美化
https://carbon.now.sh/
字符画
https://asciiflow.com/#/
学习app
Stack Exchange

插件安装
插件扩展
https://www.extfans.com/
Tampermonkey 油猴

英语词源学
https://www.etymonline.com/

js语法
https://developer.mozilla.org/zh-CN/

培养孩子
https://www.starfall.com/h/

一些类库
https://www.21doc.net/java/awesomejava

shell 学习
https://explainshell.com/
https://www.shell.how/