npm install antd-mobile --save

import 'antd-mobile/dist/antd-mobile.css';

import React From 'react';
import { Button } from 'antd-mobile';
const index = () => {
    return (
        <div>
            <Button tyPE="Primary">PRimary</Button>
        </div>
    );
}

export default index;

npm install babel-plugin-import -s

npm install react-app-rewired customize-cra -s

 "scripts": {
    "start": "react-app-rewired start",
    "build": "react-app-rewired build",
    "test": "react-app-rewired test",
    "eject": "react-app-rewired eject"
  },

const { override, fixBabelImports } = require('customize-cra');
module.exports = override(
    fixBabelImports('import', {
        libraryName: 'antd-mobile',
        style: 'css',
    }),
);

npm install lib-flexible postcss-px2rem-exclude --save

import 'lib-flexible'

const { override, fixBabelImports, addPostcssPlugins, addWebpacKalias} = require('customize-cra');
const path = require("path");
module.exports = override(
    fixBabelImports('import', {
        libraryName: 'antd-mobile',
        style: 'css',
    }),
    addPostcssPlugins(
        [require("postcss-px2rem-exclude")
            (
                {
                    remUnIT: 75, //设计图大小
                    remPrecision: 2, //只转换到两位小数
                    exclude: /node_modules/i //插件不需要转rem
                }
            )
        ]
    ),
    addWebpackAlias({
        "@": path.resolve(__dirname, "src")
    })
);

npm install less less-loader -s

npm install less-loader@5.0.0 -s

const { override, fixBabelImports, addPostcssPlugins, addWebpackAlias, addLessLoader } = require('customize-cra');
const path = require("path");
module.exports = override(
    fixBabelImports('import', {
        libraryName: 'antd-mobile',
        style: true, //默认为'css'
    }),

    addLessLoader({
        javascriptEnabled: true,
        modifyVARs: { "@brand-primary": "#1DA57A" }, //自定义主题
    }),

    addPostcssPlugins(
        [require("postcss-px2rem-exclude")
            (
                {
                    remUnit: 75, //设计图大小
                    remPrecision: 2, //只转换到两位小数
                    exclude: /node_modules/i //插件不需要转rem
                }
            )
        ]
    ),

    addWebpackAlias({
        "@": path.resolve(__dirname, "src")
    })
);

npm i react-app-rewire-postcss postcss-px2rem-exclude -S

const {
  override,
  fixBabelImports,
  addWebpackAlias,
  addDecoratorsLegacy,
} = require("customize-cra");
const path = require("path");
const rewirePostcss = require("react-app-rewire-postcss");
module.exports = override(
  // 配置按需加载
  fixBabelImports("import", {
    libraryName: "antd-mobile",
    style: "css",
  }),
  // 配置文件别名
  addWebpackAlias({
    "@": path.resolve(__dirname, "src"),
    "@scss": path.resolve(__dirname, "src/assets/scss"),
    "@images": path.resolve(__dirname, "src/assets/images"),
    "@views": path.resolve(__dirname, "src/views"),
    "@network": path.resolve(__dirname, "src/network"),
    "@Store": path.resolve(__dirname, "src/store"),
    "@components": path.resolve(__dirname, "src/components"),
  }),
  addDecoratorsLegacy(),
  (config, env) => {
    // 重写postcss
    rewirePostcss(config, {
      plugins: () => [
        require("postcss-flexbugs-fixes"),
        require("postcss-preset-env")({
          autoprefixer: {
            flexbox: "no-2009",
          },
          stage: 3,
        }),
        require("postcss-px2rem-exclude")({
          // 设计稿宽度/10
          remUnit: 1080 / 10,
          exclude: /node-modules/i,
        }),
      ],
    });
    return config;
  }
);