import Vue from 'vue'import VueRouter from 'vue-router'// "@"相當于".."import Detail from '../pages/goodsDetail'import Msg from '../components/message.vue'// 使用路由Vue.use(VueRouter)export default new VueRouter({  mode: 'history',  routes: [    {      // 進行路由配置,規定'/'引入到home組件      path: '/',      component: resolve => require(['../pages/home.vue'], resolve),      meta: {        title: 'home'      }    },    {      path: '/msg',      component: Msg    },    {      path: '/detail',      component: Detail,      children: [        {          path: 'msg',          component: Msg        }      ]    }  ]})原代碼如上,其中這一段 component: resolve => require(['../pages/home.vue'], resolve),      meta: {        title: 'home'      }1.不知道這第一行是什么意思,和import引入組件模塊有什么區別?2.meta部分是什么含義?去掉沒發現有什么改變求指教~謝謝!!