1.安裝sass
npm i sass-loader node-sass --save-dev
2.安裝stylus
cnpm install stylus --save-dev
cnpm install stylus-loader --save-dev
3.安裝導出excel
參考文檔：https://www.cnblogs.com/qiu-Ann/p/7743897.html
npm install -S file-saver
npm install -S xlsx
npm install -D script-loader