gulp-cssmin: css压缩
gulp-uglify: js压缩混淆
gulp-imagemin: 图片压缩
gulp-htmlmin: html压缩
gulp-concat: 文件合并
gulp-sass: sass文件转换
gulp-less: less文件转换
gulp中常用的模块
原文：https://www.cnblogs.com/answercard/p/12075907.html
