1, 修改倉庫為淘寶鏡像，淘寶出了新域名地址
npm config set registry https://registry.npmmirror.com/
2, 如果要發布自己的鏡像需要修改回來
npm config set registry https://registry.npmjs.org/
3, 安裝cnpm
npm install -g cnpm --registry=https://registry.npm.taobao.org