jsrequest to https://registry.npm.taobao.org/typescript failed, reason: certificate has expired1 前言安装TypeScript时报错npm install-g typescript报错提示如下requesttohttps://registry.npm.taobao.org/typescript failed,reason:certificate has expired2 解决方式需要切换淘宝最新镜像地址npm config set registry https://registry.npmmirror.com1输入npm config list2清空缓存npm cache clean--force3修改为淘宝镜像源npm config set registry https://registry.npmmirror.com4再次检查npm config list已修改为https://registry.npmmirror.com5再次安装TypeScriptnpm install-g typescript安装成功