//1,设置淘宝镜像源
npm config set registry https://registry.npm.taobao.org
//2,查看配置后的镜像源
npm config get registry
//3,安装淘宝镜像源
npm install -g cnpm --registry=https://registry.npm.taobao.org
//完成
[root@DN3 web]# npm config set registry https://registry.npm.taobao.org
[root@DN3 web]# npm config get registry
https://registry.npm.taobao.org/
[root@DN3 web]# npm install -g cnpm --registry=https://registry.npm.taobao.org
/usr/local/nodejs/bin/cnpm -> /usr/local/nodejs/lib/node_modules/cnpm/bin/cnpm
+ cnpm@6.1.0
added 680 packages from 915 contributors in 35.742s
