Vue中如何使用路由實現頁面滾動控制和定位？

// main.js

import Vue from 'vue'
import App from './App.vue'
import router from './router'

Vue.config.productionTip = false

new Vue({
  router,
  render: h => h(App)
}).$mount('#app')

// router.js

import Vue from 'vue'
import Router from 'vue-router'
import Home from './views/Home.vue'
import About from './views/About.vue'

Vue.use(Router)

export default new Router({
  mode: 'history',
  routes: [
    {
      path: '/',
      name: 'home',
      component: Home,
      meta: { scrollToTop: true } // 指定是否需要滚动到页面顶部
    },
    {
      path: '/about',
      name: 'about',
      component: About,
      meta: { scrollToTop: false } // 指定无需滚动到页面顶部
    }
  ],
  scrollBehavior(to, from, savedPosition) {
    if (savedPosition) {
      return savedPosition
    } else {
      if (to.meta.scrollToTop) {
        return { x: 0, y: 0 }
      }
    }
  }
})

<!-- Home.vue -->

<template>
  <div class="home">
    <h1>Welcome to Home Page</h1>
    <router-link to="/about">Go to About Page</router-link>
  </div>
</template>

<!-- About.vue -->

<template>
  <div class="about">
    <h1>Welcome to About Page</h1>
    <router-link to="/">Go to Home Page</router-link>
  </div>
</template>

<!-- App.vue -->

<template>
  <div id="app">
    <router-view></router-view>
  </div>
</template>