Route Matchers是由什么组成的呢？

Route Matchers

· &

• when a is rendered, it searches through its children

elements to find one whose path matches the current URL

• when it finds one, it renders that and ignores all others

• if no matches,the renders nothing(null) render(){

return(
<Router>
<Switch>
<Route path="/about"><About /></Route>
<Route path="/users">Users /></Route>
<Route path="/"<Home/></Route>
</Switch>
</Router>