估计很多人这一步就放弃了

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#1 Created at ... [Delete] [Delete and Lock User]

WIN10 1809版本

控制面板-系统-高级系统设置-高级-环境变量

在系统变量新建变量名JAVA_HOME，

变量值为jdk安装目录，默认是

C:\Program Files\Java\jdk-12

编辑系统变量的Path，新建文本内容为

%JAVA_HOME%\bin

确定-确定-确定

#2 Created at ... [Delete] [Delete and Lock User]

64位的版本

#3 Created at ... [Delete] [Delete and Lock User]

不会吧，安装个JDK没啥啊，百度一下不就好了

#4 Created at ... [Delete] [Delete and Lock User]

师兄，怎么我照做了还是不行啊，是不是我还有什么地方没做好？

#5 Created at ... [Delete] [Delete and Lock User]

如果设置完成后还不行，请重启；

请下载并安装Java SE，而不只是jre。

#6 Created at ... [Delete] [Delete and Lock User]

2020_03_01最新版本的默认目录是

C:\Program Files\Java\jdk-13.0.2

#7 Created at ... [Delete] [Delete and Lock User]

大哥能就是解释一下符号%的意思吗~