npm国内镜像

npm config set registry https://registry.npm.taobao.org

1.临时使用

npm --registry https://registry.npm.taobao.org install express

2.持久使用

npm config set registry https://registry.npm.taobao.org

配置后可通过下面方式来验证是否成功

npm config get registry 或 npm info express

3.通过cnpm使用

npm install -g cnpm --registry=https://registry.npm.taobao.org

原始源

npm config set registry https://registry.npmjs.org/

获取当前的镜像地址

npm get registry

切换成淘宝镜像

npm config set registry http://registry.npm.taobao.org/

换回原来

npm config set registry https://registry.npmjs.org/