安装项目全部依赖包：
npm install
安装生产环境依赖包：（即package.json文件中的dependencies部分）
npm install --production
配置生产和开发并行
在
webpack.config.js中配置生产和开发的地址
let address = {}if(process.env.type == "build"){ //process.env获取当前系统环境信息的对象，常规可以用来进一步获取环境变量、用户名等系统信息
address["publicPath"] = "http://cdn.jspang.com"}else{
address["publicPath"] = "http://192.168.2.153:1117/"}在
package.json中设置scripts的命令
"scripts": { "test": "echo \"Error: no test specified\" && exit 1", "server": "webpack-dev-server --open", "dev": "set type=dev&webpack", //添加type=dev,那样process.env.type就可以获取到type的值 "build": "set type=build&webpack"}ps：mac的package.json配置set要替换成export，并且要多加一个&符
"scripts": { "test": "echo \"Error: no test specified\" && exit 1", "server": "webpack-dev-server --open", "dev": "export type=dev&&webpack", "build": "export type=build&&webpack"}
作者：饥人谷_米弥轮
链接：https://www.jianshu.com/p/873818ba9b31