- 臨時換源
npm --registry https://registry.npm.taobao.org install express
2.永久換源
npm config set registry https://registry.npm.taobao.org
//配置后可通過下面方式來驗證是否成功
npm confit get registry
//或者
npm info express
3.通過cnpm
npm install -g cnpm --registry=https://registry.npm.taobao.org
// 使用cnpm install expresstall express