1.设置自动导入jar包
[File]-[Settings]-[Editor]-[General]-[Auto Import]-[Optimize imports on the fly]
2.设置打开工程的方式（当前窗口或新窗口）
[File]-[Settings]-[Appearance & Behavior]-[System Settings]-[Project Opening]
3.设置显示工具栏
[View]-[Toolbar]
4.设置配置文件编码
[File]-[Settings]-[Editor]-[File Encodings]-[Transparent native-to-ascii conversion]
