Missing script: "serve" 需要 npm install
然后修改package.json文件
"scripts": { "dev": "SET NODE_OPTIONS=--openssl-legacy-provider && vue-cli-service serve", "build:prod": "SET NODE_OPTIONS=--openssl-legacy-provider && vue-cli-service build", "build:stage": "vue-cli-service build --mode staging", "preview": "node build/index.js --preview", "lint": "eslint --ext .js,.vue src" },