准备工作：
1、编码集
file -> settings -> Editor -> File encodings
project encoding utf-8
Default encoding for properties files utf-8 并勾上后面
2、jdk
file -> project structure -> project -> project sdk填写自己的jdk路径
3、字体
file -> settings -> Editor ->font
4、隐藏项目文件
file -> settings -> Editor -> File Type -> Ignored Files and Folders加入.idea;.iml;
