webpack.config.js

{
  test: /\.(js|mjs|jsx|ts|tsx)$/,
  include: paths.appSrc,
  loader: require.resolve('babel-loader'),
  options: {
    customize: require.resolve(
      'babel-preset-react-app/webpack-overrides'
    ),
    plugins: [
      ["import",{libraryName: "antd", style: 'css'}],   //只需加一行，手动划重点antd按需加载 
      [
        require.resolve('babel-plugin-named-asset-import'),
        {
          loaderMap: {
            svg: {
              ReactComponent: '@svgr/webpack?-svgo,+ref![path]',
            },
          },
        },
      ],
    ], 
    cacheDirectory: true,
    cacheCompression: isEnvProduction,
    compact: isEnvProduction,
  },
}