Mac环境下Java卸载
卸载步骤如下：
1.输入sudo rm -fr /Library/Internet\ Plug-Ins/JavaAppletPlugin.plugin
2.输入sudo rm -fr /Library/PreferencesPanes/JavaControlPanel.prefpane
3.查找当前版本ls /Library/Java/JavaVirtualMachines/
4.输入sudo rm -rf /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk