router/index.js

import Vue from 'vue'
import VueRouter from 'vue-router'
import Home from '../views/Home.vue'
import Test from '../views/Test.vue';

Vue.use(VueRouter)

const routes = [
  {
    path: '/',
    name: 'Home',
    component: Home
  },
  {
     // 动态路由
    path: '/test/:id',
    name: 'Test',
    component: Test
  },
  {
    path: '/about',
    name: 'About',
    component: () => import(/* webpackChunkName: "about" */ '../views/About.vue')
  }
]

const router = new VueRouter({
  mode: 'history',
  base: process.env.BASE_URL,
  routes
})

export default router

views/Test.vue

<template>
    <div>
        我是Test,查看动态路由参数id:{{this.$route.params.id}}
    </div>
</template>

<script>
    export default {
        created () {
            console.log(this.$route.params.id);;
        },
    }
</script>

<style lang="scss" scoped>

</style>