npm换源淘宝镜像
单次使用:npm install --registry=http://registry.npmmirror.com
永久更换:npm config set registry http://registry.npmmirror.com
恢复原样:npm config set registry https://registry.npmjs.org
检查:npm config get registry
单次使用:npm install --registry=http://registry.npmmirror.com
永久更换:npm config set registry http://registry.npmmirror.com
恢复原样:npm config set registry https://registry.npmjs.org
检查:npm config get registry