vue-router 如何默認顯示三級子路由

  {
    path: '/aaa',
    name: 'aaa',
    title: '統計分析',

    component: () => import('@/aaa.vue'),//一級子組件、容器

    children: [
      {
        path: 'aaa-1',
        name: 'aaa-1',
        title: '統計分析標題頁',
        component: () => import('@/childPage/aaa-1.vue'),//二級子組件、標題
        children: [
          {
            path: 'aaa-2',
            name: 'aaa-2',
            title: '統計分析首頁',
            component: () => import('@/childPage/aaa-2.vue')//三級子組件、內容1
          },
          {
            path: 'aaa-3',
            name: 'aaa-3',
            title: '統計分析子頁1',
            component: () => import('@/childPage/aaa-3.vue')//三級子組件、內容2
          },
          {
            path: 'aaa-4',
            name: 'aaa-4',
            title: '統計分析子頁2',
            component: () => import('@/childPage/aaa-4.vue')//三級子組件、內容3
          },
          {
            path: 'aaa-5',
            name: 'aaa-5',
            title: '統計分析子頁3',
            component: () => import('@/childPage/aaa-5.vue')//三級子組件、內容4
          }
        ]
      },
    ]
  },

想要默認顯示到三級子組件，路由直接push到三級子組件的路徑即可