1.得到原本的镜像地址
npm get registry
> https://registry.npmjs.org/
设成淘宝的
npm config set registry http://registry.npm.taobao.org/
2.换成原来的
npm config set registry https://registry.npmjs.org/
npm的镜像替换成淘宝
原文：http://www.cnblogs.com/zycbloger/p/6210049.html
