二级路由画面显示空白

vue2项目，二级路由画面不显示，经检查：1.一级路由忘记加"/"；2.二级路由的上级路由页面中没有添加/

1、

  {path: '/',component: Layout, -----------二级路由页面需要统一设置layoutredirect: '/dashboard',children: [{path: 'dashboard',name: 'Dashboard',component: () => import('@/views/dashboard/index'),meta: { title: 'Dashboard', icon: 'dashboard' }}]},

2、