解决办法参考https://segmentfault.com/a/1190000010984731?utm_source=tag-newest
npm uninstall node-sass
npm i node-sass --sass_binary_site=https://npm.taobao.org/mirrors/node-sass/
node-sass pip 安装报错，提示缺少python2
原文：https://www.cnblogs.com/angelica-duhurica/p/12332907.html