详谈Vue.js框架下main.js,App.vue,page/index.vue之间的区

import Vue from 'vue'
import App from './App'
import router from './router'
import Element from 'element-ui'
import 'element-ui/lib/theme-chalk/index.css'
 
Vue.use(Element);
Vue.config.productionTip = false
 
/* eslint-disable no-new */
new Vue({
 el: '#app',
 router,
 components: { App },
 template: '<App/>'
})

import Vue from 'vue'
import Router from 'vue-router'
import Login from '../components/Login'
Vue.use(Router)
 
export default new Router({
 routes: [
  {
   path: '/Login',
   name: 'Login',
   component: Login
  },
  {
   path:"/login1",
   component:() => import('@/components/login1.vue')
  }
 ],
 mode: "history"//干掉地址栏里边的#号键
})

<template>
<div id="app">
<router-view />
</div>
</template>
 
<script>
export default {
 name: 'App', 
 data () {
    return {
     
    }
 }
}
</script>
<style>
</style>