Child routes nested child routes

export default new Router({
  routes: [{
      path: "/",
      name: "index",
      redirect: "/login"
    },
    {
      path: "/operator",
      name: "operator",
      component: Index,
      meta: {
        title: ""
      },
      children: [{
          path: "default",
          component: (resolve) => {
            require(["../view/operator/index"], resolve)
          },
          alias: "/operator",
          meta: {
            title: ""
          }
        },
        {
          path: "newlist",
          component: candidatelist,
          name: "newlist",
          meta: {
            title: ""
          },
          children:[
            {
              path: "/operator/newlist/candidatedetail/:id",
              component: candidatedetail,
              name: "candidatedetail",
              meta: {
                title: "
              }
            },
          ]
        } 
      ]
    }
})

Child routes nest child routes. For the details below the
list, what should I do if I want to display the list on the same page as the list?
shows

on the same page if you use < router-view > < / router-view > on the list page.
Mar.13,2022
MySQL Query : SELECT * FROM `codeshelper`.`v9_news` WHERE status=99 AND catid='6' ORDER BY rand() LIMIT 5
MySQL Error : Disk full (/tmp/#sql-temptable-64f5-1e84e62-d11.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
MySQL Errno : 1021
Message : Disk full (/tmp/#sql-temptable-64f5-1e84e62-d11.MAI); waiting for someone to free some space... (errno: 28 "No space left on device")
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