New route, used in Layout.vue, jump page position, not router-view, but jump new page

[xcyeye]

I added two routes through the following two methods, I want to test and use them in Layout.vue, but after clicking the link, it jumps to the new page instead of the router-view location. Is it because I used it wrong?

router.addRoute({
    path: '/demon1',
    component: demon1
})

router.addRoute({
    path: '/demon2',
    component: demon2
})

<!--Layout.vue-->

<router-link to="/demon1">demon1</router-link><br>
<router-link to="/demon2">demon2</router-link><br>

<router-view></router-view>

[xcyeye]

I know what is wrong, I did not nest the routing,Sorry to disturb everyone