IDEA设置
1. 字体大小设置
File-> Settings ->Editor -> Font
2. 取消自动更新
File-> Settings -> Appearance & Behavior -> System Settings -> Updates
3. 代码提示忽略大小写
File-> Settings -> Editor -> Code Completion -> Match case
4. 修改项目文件等编码
File-> Settings -> Editor -> File Encodings
5. .设置自动导包
FIle -> Setting -> Editor -> General -> Auto Import
