npm工作流 与webpack 分同环境配置
npm:http://www.ruanyifeng.com/blog/2016/10/npm_scripts.html
process.env.npm_lifecycle_event
process.argv
webpack配置:https://blog.csdn.net/a250758092/article/details/81234419
利用: cross-env包或者yargs包
https://www.cnblogs.com/nanacln/p/7028275.html
https://www.jb51.net/article/137355.htm
https://www.jb51.net/article/137610.htm
http://www.cnblogs.com/weifeng123/p/9185962.html
https://my.oschina.net/shuaihong/blog/1938804
环境变量:https://segmentfault.com/a/1190000011683741
webpack:
https://www.cnblogs.com/tugenhua0707/p/9780621.html
vue-cli中是在build里设置了process.env.NODE_ENV = 'production'