NPM：切换国内镜像源

一、查看现在的镜像源

通常默认官方源是https://registry.npmjs.org

npm config get registry

二、切换镜像源

//切换淘宝源
npm config set registry https://registry.npm.taobao.org

//切换腾讯源
npm config set registry http://mirrors.cloud.tencent.com/npm/

//切换阿里云源
npm config set registry https://registry.npmmirror.com