如何配置 Vue-router 异步加载

异步加载，也叫懒加载。示例：

export default new VueRouter({
  routes: [
    {
      path: '/',
      component: () =>
        import(
          /* webpackChunkName:"navigator" */
          './../components/Navigator'
        ),
    },
    {
      path: '/feedback',
      component: () =>
        import(
          /* webpackChunkName:"feedback" */
          './../components/Feedback'
        ),
    },
  ],
});