vue-router 动态添加路由的问题

目前添加进去的路由是在 一级的 path 中， router.addRouters( router );

routes: [ { path: '/', redirect: '/login' }, { path: '/readme', name:'logoreadme', meta: {requireAuth: true}, component: resolve => require(['../components/common/Home.vue'], resolve), beforeEnter: (to, from, next) => { if (store.getters.showUser.username) {// 判断是否登录 //登录后，绑定需要的token 参数 axios.defaults.headers.common['Authorization'] = store.getters.showUser.Authorization; next() } else {// 没登录则跳转到登录界面 next({'path': '/'}) } }, children:[ { path: '/', component: resolve => require(['../components/index/Readme.vue'], resolve) }] } ]

可是我想登录后，动态添加到，routers[1]的children中。这个怎么搞。。。。。。。 求大家指导下！！！