一、 卸载
（首次安装可跳过）
导出配置
运行卸载程序
删除缓存&配置&插件
卸载完成
二、 下载安装
（一） 官网:
官网：http://www.jetbrains.com/idea/download/#section=windows
官方文档：http://www.jetbrains.com/help/idea/meet-intellij-idea.html
（二） 安装
本教程所对应的版本
- 在桌面上创建一个快捷图标，建议勾选上，方便我们在安装后定位 IntelliJ IDEA 安装目录。
- 关联 Java 和 Groovy 文件，建议都不要勾选，正常我们会在 Windows 的文件系统上打开这类文件都是为了快速查阅文件里面的内容，如果用 IntelliJ IDEA 关联上之后，由于 IntelliJ IDEA 打开速度缓慢，这并不能方便我们查看
（三） 导入配置
或者在启动主界面导入
（四） 运行并破解 - 在C:\Windows\System32\drivers\etc\host文件中添加:
0.0.0.0 account.jetbrains.com - 复制激活码
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（五） 选择UI主题
（六） 选择插件
这里可以按默认设置，点击下一步，后续可以在settings中修改
（七） 安装插件
这里也可以直接点击开始使用，后续可以再安装插件
