I am new to vue.js. I only know that main.js is the entry file and app.vue is the total component. Why do I remove the export default code in app.vue and import app from '.app' in main.js? Page But it can display the content in app.vue

App.vue configuration

main.js file

import Vue from 'vue'; import App from './App'; Vue.config.productionTip = false; /* eslint-disable no-new */ new Vue({ el: '#app', template: '', components: { App } });

Can the app.vue file be received without exportmain.js?