如果安装过无限试用、修改过 hosts 请先卸载干净旧版本再安装，否需无法激活！
以
WebStorm为例
- JetBrains官网 下载安装你需要的 IDE，如果下载慢可以在 macwk 搜索 jetbrains。
- 下载 JetBrains.zip，下载后解压，得到 fineagent.jar，将该文件复制到
/Users/你的用户名/文件夹下 - 打开访达，点击左侧的
应用程序找到WebStorm，在 WebStorm 图标上右键，点击显示包内容 - 进入
Contents目录，再进入bin目录，使用文本编辑器打开webstorm.vmoptions文件 - 在最后面添加
-javaagent:/Users/你的用户名/fineagent.jar，记得修改一下你的用户名。 - 运行 WebStorm, 选择
Activate WebStorm，再点击Activation Code - 复制下面的的激活码粘贴到激活窗口的输入框中，点击
Activate。可以用到 2099 年！
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尽情享用吧！