以下是router里面的index.js文件代碼：

import?{?createRouter,?createWebHistory?}?from?'vue-router'

import?Home?from?'../views/Home.vue'

import?First?from?'../views/First.vue'

const?routes?=?[

??{

????path:?'/',

????component:?First

??},

??{

????path:?'/about',

????name:?'About',

????//?route?level?code-splitting

????//?this?generates?a?separate?chunk?(about.[hash].js)?for?this?route

????//?which?is?lazy-loaded?when?the?route?is?visited.

????component:?()?=>?import(/*?webpackChunkName:?"about"?*/?'../views/About.vue')

??}

]