將路由的信息都寫在了路由自己的文件中：router.config.js,不要寫在main.js中就可以了
router.config.js
import Vue from 'vue';
import Router from 'vue-router';
import login from '../components/login';
Vue.use(Router);
const routes = [
{path: '/login', component: login}
];
const router = new Router({
routes: routes
});
export default router;
`
main.js
`
import App from './App';
import router from './router/router.config.js';
/* eslint-disable no-new */
new Vue({
el: '#app',
router,
render: h => h(App)
});
