{
  "presets": [
    [
      "@babel/preset-env",
      {
        "targets": {
          // 大于相关浏览器版本无需用到 preset-env
          "edge": 17,
          "firefox": 60,
          "chrome": 49,
          "safari": 11
        },
        "corejs": "2", // <---
        // 根据代码逻辑中用到的 ES6+语法进行方法的导入，而不是全部导入
        "useBuiltIns": "usage"
      }
    ],
    "@babel/preset-react",
    "@babel/env",
    "@babel/typescript",
    "@babel/react"
  ],
  "plugins": [
    [
      "import",
      {
        "libraryName": "antd",
        "libraryDirectory": "es",
        "style": "css" // `style: true` 会加载 less 文件
      }
    ]
  ]
}