react之ant design mobile中的问题

Question

为什么页面跳转后，ReactDOM.render()就渲染不出来，没效果跳转后页面代码import React,{Component}from 'react';import ReactDOM from 'react-dom';import { Flex, WhiteSpace,Button } from 'antd-mobile';import U98 from '../images/robotmanage/u98.png';const Tip = ({ className = '', ...restProps }) => (    <span className={`${className} tip`} {...restProps}>登录</span>);const FlexExample = () => (    <div className="flex-container">        <Flex justify="center">            <img src={U98} alt="u89"/>        </Flex>        <Flex justify="center">            <div><p><Tip /></p></div>        </Flex>        <WhiteSpace size="lg" />        <Flex justify="center">            <Button>完成</Button>            <Button>刷新</Button>        </Flex>        <WhiteSpace />    </div>);ReactDOM.render(<FlexExample />,document.getElementById('root'));求解答

Answer 1

好像是router没设置

Answer 2

单页面可以出来，你把路由的设置贴出来，看一下