vue 嵌套路由的匹配

實現某個場景：一開始顯示子級路由頁面。然後也能顯示其它父級路由的。

下面的路由情況是這樣的 HelloWorld 和Second是父級路由,Test是子路由

import HelloWorld from '@/components/HelloWorld'
import Test from '@/components/Test'
import Second from '@/components/Second'
export default new Router({
  routes: [
    {
      path: '', 
      name: 'HelloWorld',
      component: HelloWorld,
      redirect: 'test',
      children: [
        {
          path: 'test',
          component: Test
        }
      ]
    },
    {
      path: '/second',
      name: 'Second',
      component: Second
    }
  ]
})