npm install * 时报错：
npm ERR! code CERT_HAS_EXPIRED
npm ERR! errno CERT_HAS_EXPIRED
npm ERR! request to https://registry.npm.taobao.org/events failed, reason: certificate has expired

解决方法：
关闭 npm ssl 严格证书检查
npm set strict-ssl false

或切换到官方源：
npm config set registry https://registry.npmjs.org/