Vue Click the menu to open at the specified router-view?

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Click the navigation on the left or above to open the specified page content on the right
my idea is to use router-view to define routes, but it doesn"t seem to work? Ask the Great God for a more reasonable demo

Sep.27,2021

you need to post your routing configuration and the file where the router-view is located.
you should have a shared parent page and implement it with child routing.
such as the shared parent page A.vue, and the child routes are placed on B.vue and C.vue

then A.vue should write:

Isn't it all in
  

vue-admin,iview-admin?

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