Vue 2.0 的路由如何从一个单文件组件启动？

import Vue from ‘vue‘;
import App from ‘./app.vue‘;
import router from ‘./router‘;

var app = new Vue({
    el: ‘#app‘,
    router,
    render: h => h(App)
});

import _ from ‘lodash‘;
import Vue from ‘vue‘
import router from ‘vue-router‘
import App from ‘./app.vue‘

new Vue({
        el: ‘#app‘,
        router,
        render: h => h(App)
    })
    // 等同于
    // new Vue({
    //     router,
    //     render: (h) => h(app)
    //   }).$mount(‘#app‘)