vue.js項(xiàng)目組件模塊的調(diào)用問題

import Vue from 'vue'
import VueRouter from 'vue-router'
// "@"相當(dāng)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(jìn)行路由配置,規(guī)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(qū)別?
2.meta部分是什么含義?去掉沒發(fā)現(xiàn)有什么改變

求指教~謝謝!!