idea基础设置
设置鼠标悬浮提示： file -> editor -> general -> show quick documentation on mouse move
设置ctrl + 鼠标滚轮调整字体大小： file -> editor -> general -> Change font size(Zoom) with ctrl + Mouse wheel
设置自动导包： file -> editor -> general -> auto import
勾选add unambiguous imports on the fly和optimize imports on the fly(for current project)两项
显示行号及分隔符（方法）： file -> editor -> general -> Appearance
勾选show line numbers和show method separators
设置忽略大小写提示： file -> editor -> general -> Code completion 去掉Match case的勾选
设置文件多行显示： file -> editor -> general -> Editor Tabs 去掉勾选show tabs in one line
设置默认字体、字体大小、字体行间距： file -> editor -> font 设置font、size、line spacing
设置单行、多行、文档注释等字体颜色： file -> Editor -> Color Scheme -> Language Defaults
设置编码格式： file -> editor -> File Encodings
设置自动编译： file -> setting -> Buile,Execution,Deployment -> Compiler