node-sass包下载过慢或者失败

yarn 或者 npm 卡在 node-sass 上出错

设置源

# yarn 
yarn config set registry https://registry.npm.taobao.org -g
yarn config set sass_binary_site http://cdn.npm.taobao.org/dist/node-sass -g
# npm
npm config set registry https://registry.npm.taobao.org
npm config set sass_binary_site http://cdn.npm.taobao.org/dist/node-sass -g