首先通过create-react-app 创建项目 create-react-app <mydemo/>

弹出配置 yarn run eject

如图

image.png

下载less-loader 不要用最新的less-loader版本，建议使用2.7.3

yarn add less-loader@^2.7.3

下载antd

yarn add antd

使用 babel-plugin-import

yarn add babel-plugin-import

修改配置

config/webpack.config.dev.js 文件内

注意 ，一定要用双引号

modifyVars: {
  "@primary-color": "red"
}

module: {
 // ···
  rules:[
    // ···
  {
            test: /\.less$/,
            use: [
              require.resolve('style-loader'),
              {
                loader: require.resolve('css-loader'),
                options: {
                  importLoaders: 1,
                },
              },
              {
                loader: require.resolve('postcss-loader'),
                options: {
                  // Necessary for external CSS imports to work
                  // https://github.com/facebookincubator/create-react-app/issues/2677
                  ident: 'postcss',
                  plugins: () => [
                    require('postcss-flexbugs-fixes'),
                    autoprefixer({
                      browsers: [
                        '>1%',
                        'last 4 versions',
                        'Firefox ESR',
                        'not ie < 9', // React doesn't support IE8 anyway
                      ],
                      flexbox: 'no-2009',
                    }),
                  ],
                },
              },
              {
                loader:require.resolve('less-loader'),
                options:{
                  modules: false,
                  modifyVars: {
                    "@primary-color": "red"
                  }
                }
              }
            ],
          },
   // ····  css 配置
  ]
// ···
}