这是router.jsx
import React from 'react'
import { Router, Route, Link, Switch, Redirect} from 'react-router-dom';
import history from '../history/history'
import Login from '../views/login'
import Another from '../views/another'
const Routes = (
<Router history={history}>
<Switch>
<Route path="/" component={Login}></Route>
<Route path="/another" component={Another}></Route>
</Switch>
</Router>
)
export default Routes
默认是可以渲染Login组件的
但是手动改了路由之后页面还是原来的Login组件