the route is written as follows

routes: [
    
    { path: "/A", component: A },
    { path: "/B", 
        component: B ,
        children: [
            { path: "", component: B1},
            { path: "b2", component: B2},
            { path: "b3", component: B3},
        ]
    },
  ]
  
  

when I enter component B from component A, then enter component B2 from B1, and then enter B3, I expect that regardless of B1MagB2JOB3, I can click back to return to the A page, instead of returning to B2 from B3 (in fact, I hope that when I click back, I can skip the child route directly and directly take the outer route as the unit)

I don"t know how to implement