Q: npm命令：
1.npm config set registry https://registry.npm.taobao.org 2.查看：npm info underscore 3.查看npm地址：npm config get prefix 4.npm升级：npm install npm -g 5.升级npm: npm update -g 6.升级node: npm install n -g | n latest
Q: npm命令：
1.npm config set registry https://registry.npm.taobao.org 2.查看：npm info underscore 3.查看npm地址：npm config get prefix 4.npm升级：npm install npm -g 5.升级npm: npm update -g 6.升级node: npm install n -g | n latest
原文：http://www.cnblogs.com/maoriaty/p/8039324.html