Create a new post 创建一个新的文章
$ hexo new "new post"
View site static 发布前预览
$ hexo s
Clean cache file 清理缓存（如果修改了格式）
$ hexo clean
Generate and deploy files 发布
hexo g -d
Change header image
themes/next/source/css/_variables/base.styl
Change background image
themes/next/source/css/_common/scaffolding/base.styl, body:background-image