1.查看npm仓库地址:npm config get registry
2.修改地址:npm config set registry https://registry.npm.taobao.org
C:\Users\Kingo>npm config get registry
https://registry.npmjs.org/
C:\Users\Kingo>npm config set registry https://registry.npm.taobao.org
C:\Users\Kingo>npm config get registry
https://registry.npm.taobao.org/