激活码分享
使用 IDEA 需要先使用激活码进行激活，成功激活之后才能够使用 IDEA 进行编程开发。
激活码我直接贴在这里了，大家直接复制到 IDEA 就行了：
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如果激活码失效了怎么办？永久激活最新版方案 IDEA：http://sigusoft.com/idea/721.html
Java JDK 下载、安装和配置教程
JDK的下载
2、往下拉，看到Developer Downloads ，点击 java
3、点击 Java (JDK) for Developers
4、选择你想要下载的jdk版本
5、点击 JDK Downloads ，往下拉，
(有可能会提示先登录账号，才能下载。没账号的可以注册一个)
我的系统是Windows的 64位，个人偏爱压缩版，
所以选择了jdk-14.0.1_windows-x64_bin.zip
(压缩版的话，放到指定的目录下，直接解压出来就行了)
JDK的安装
双击运行安装包
修改JDK安装目录
根据提示安装完成，这就完成jdk安装了，可以直接点关闭了。
JDK的环境配置
“我的电脑”右键→属性→高级系统设置→环境变量
点击“新建”，新建系统变量JAVA_HOME，值为JDK安装根目录
：编辑PATH变量，将刚刚新建的JAVA_HOME变量加上bin目录设置到PATH中
【 %JAVA_HOME%\bin;%JAVA_HOME%\jre\bin; 】
JDK的配置验证
同时按住win + R，输入cmd，回车，进入命令提示符窗口
先输入 java –version 查看一下版本号。
再输入 java 看看有没有java相关信息
最后是一个关键点 输入 javac ，看看有没有相关信息
5. 如果没成功的话，可以重新检查一轮。基本上就是路径 配没配对的问题了。
