@babel中使node.js可以支持ES6，jsx語法（create-react-app中配置）

1. 先看下我package.json依賴吧

"dependencies": {
    "@babel/cli": "^7.8.4",
    "@babel/core": "^7.8.4",
    "@babel/node": "^7.8.4",
    "@babel/preset-env": "^7.8.4",
    ..................
    }

2. 接下來當然是安裝了，此處本人用yarn

yarn add @babel/cli @babel/core @babel/node --save
yarn add  @babel/preset-env --save

3. 安裝結束後在.babelrc中配置

{
  "plugins": [
    [
      "@babel/plugin-proposal-decorators",
      {
        "legacy": true
      }
    ],
    ["import", { "libraryName": "antd", "libraryDirectory": "es", "style": "css" }]
  ],
  "presets": [
    "react-app",
    "@babel/preset-env"
  ]
}

4. 在package.json中配置：

 "scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test --env=jsdom",
    "server": "babel-node --presets @babel/env server/server.js",
    "server_bak": "nodemon server/server.js"
  }

5. yarn 運行

yarn server