没有yarn可以先安装一下
windows系统 npm i -g yarn
mac系统 sudo npm i -g yarn
npm install / yarn or yarn install
npm run serve / yarn run serve --- 开发环境(本地)
npm run build / yarn run build --- 正式环境(线上)
npm run test / yarn run test --- 测试环境环境(本地)
npm run lint / yarn run lint
npm run lint-fix / yarn run lint-fix