使用Angular2路由器，路由的所有子节点如何加载相同的组件？

const routes: Routes = [
  {
    path: 'parent',
    component: ParentComponent,
    children: [
      { path: 'child1', component: ChildComponent },
      { path: 'child2', component: ChildComponent },
      { path: 'child3', component: ChildComponent },
      // 其他子路由...
    ]
  }
];

<router-outlet></router-outlet>