配置script 开启命令

-- 是否为 发开环境  cnpm install electron-is-dev --save-dev
 npm install concurrently --save-dev
 npm install nodemon --save-dev
 npm i nodemon --save-dev
 配置命令  
 "scripts": {     "start": "react-scripts start",     "build": "react-scripts build",     "test": "react-scripts test",     "eject": "react-scripts eject",     "ele": " nodemon --watch main.js --exec  electron . ",     "dev": "concurrently \"npm start\"  \"npm run ele\" "   },

  // 配置解决 白屏 的问题   npm install wait-on --save-dev
  "scripts": {     "start": "react-scripts start",     "build": "react-scripts build",     "test": "react-scripts test",     "eject": "react-scripts eject",     "ele": " wait-on http://localhost:3000/ &&  nodemon --watch main.js --exec  electron . ",     "dev": "concurrently \"npm start\"  \"npm run ele\" "   },
  // 配置 环境变量 解决每次都打开 新窗口的功能   npm i cross-env --save-dev
  "scripts": {     "start": "react-scripts start",     "build": "react-scripts build",     "test": "react-scripts test",     "eject": "react-scripts eject",     "ele": " wait-on http://localhost:3000/ &&  nodemon --watch main.js --exec  electron . ",     "dev": "concurrently \" cross-env BROWSER=none npm start\"  \"npm run ele\" "   },