4.2react-router实现嵌套路由

import {BrowserRouter, Route, Switch, Link}from 'react-router-dom';


class demo extends React.Component {
    render() {
        return (
            <BrowserRouter>
                <div>
                    <Switch>
                        <Route path="/" exact component={MeetingList} />
                        <Route path="/meetingSign" component={MeetingSign} />
                        <Route path="/meetingType" exact component={MeetingType} />
                        <Route path="/meetingUpload" component={MeetingUpload} />
                  </Switch>
                </div>
            </BrowserRouter>
        )
    }
}import {BrowserRouter, Route, Switch, Lin