项目中保持编码的风格一致

1. 需要安装插件EditorConfig for VS Code 支持

2. 生成 editorconfig 配置

# .editorconfig

root = true

[*]
charset = utf-8
indent_style = space
indent_size = 2
end_of_line = lf
insert_final_newline = true
trim_trailing_whitespace = true