React-router:IndexRoute 与 DefaultRoute

React-router: IndexRoute vs DefaultRoute

我想知道下面示例中的 IndexRouteDefaultRoute 有什么区别?据我了解,在这两种情况下 Home 都会被渲染,对吧?

<Route path="/" handler={App}>
  <IndexRoute handler={Home}/>
  <Route path="about" handler={About}/>
</Route>

<Route path="/" handler={App}>
  <DefaultRoute handler={Home}/>
  <Route path="about" handler={About}/>
</Route>

DefaultRoute 从 react-router v1.0 开始就消失了。 IndexRoute 改为引入。

来自文档:

// v0.13.x
// with this route config
<Route path="/" handler={App}>
  <DefaultRoute name="home" handler={Home}/>
  <Route name="about" handler={About}/>
</Route>

// v1.0
<Route path="/" component={App}>
  <IndexRoute component={Home}/>
  <Route path="about" component={About}/>
</Route>

更多内容在 upgrade guide.