没报错，但是该显示的组件没显示

将路由的信息都写在了路由自己的文件中：router.config.js,不要写在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)
});