[Java] Mac安装JDK及环境变量配置

[Java] Mac安装JDK https://www.jianshu.com/p/0036a344509e

MAC安装JDK及环境变量配置 https://blog.csdn.net/vvv_110/article/details/72897142

Mac 下搭建 Java 开发环境 https://lhajh.github.io/mac/java/2017/11/05/mac-set-up-the-Java-development-environment.html

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不过我好像直接下载安装后，环境变量自动就加上了？