vue怎么定义router的动态路由（vue.js Router中嵌套路由的实用示例）

$ npm install -g @vue/cli

$ yarn global add @vue/cli

$ vue create alligator-nest

$ npm install vue-router

.row1 {
  grid-row-start: 1;
  grid-row-end: 2;
}

.row12 {
  grid-row-start: 1;
  grid-row-end: 3;
}

.row123 {
  grid-row-start: 1;
  grid-row-end: 4;
}

.row2 {
  grid-row-start: 2;
  grid-row-end: 3;
}

.row23 {
  grid-row-start: 2;
  grid-row-end: 4;
}

.row3 {
  grid-row-start: 3;
  grid-row-end: 4;
}

.col1 {
  grid-column-start: 1;
  grid-column-end: 2;
}

.col12 {
  grid-column-start: 1;
  grid-column-end: 3;
}

.col123 {
  grid-column-start: 1;
  grid-column-end: 4;
}

.col1234 {
  grid-column-start: 1;
  grid-column-end: 5;
}

.col2 {
  grid-column-start: 2;
  grid-column-end: 3;
}

.col23 {
  grid-column-start: 2;
  grid-column-end: 4;
}

.col234 {
  grid-column-start: 2;
  grid-column-end: 5;
}

.col3 {
  grid-column-start: 3;
  grid-column-end: 4;
}

.col34 {
  grid-column-start: 3;
  grid-column-end: 5;
}

.col4 {
  grid-column-start: 4;
  grid-column-end: 5;
}

<template>
  <li id="app">
    <h1 class="row1 col12">Alligator Nest</h1>
    <a class="row1 col3">Travels</a>
    <a class="row1 col4">About</a>
    <li class="row2 col234"></li>
  </li>
</template>
html, body {
  height: 100vh;
  width: 100vw;
  padding: 0;
  margin: 0;
}

#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  color: #2c3e50;
  padding: 2%;
  height: 100%;
  display: grid;
  grid-template-rows: 20% 80%;
  grid-template-columns: 25% 25% 25% 25%;
}

<template>
  <li>
    <h2>About</h2>
    <p>Alligators were around during the time of the dinosaurs.</p>
  </li>
</template>

<script>
  export default {
    name: 'AboutPage',
  }
</script>

<style scoped>
  
</style>

import VueRouter from 'vue-router';
import Vue from 'vue';
import App from './App.vue';

Vue.config.productionTip = false;

import VueRouter from 'vue-router';
Vue.use(VueRouter);

import AboutPage from './components/AboutPage.vue';

const routes = [
  { path: '/about', component: AboutPage },
]

const router = new VueRouter({
  routes
})

new Vue({
  render: h => h(App),
  router
}).$mount('#app');

<template>
  <li>
    <p>Alligators can be found in the American states of Louisiana and Florida.</p>
  </li>
</template>

<script>
  export default {
    name: 'TravelAmericaPage'
  }
</script>

<style scoped>
</style>

<template>
  <li>
    <p>Alligators can be found in China's Yangtze River Valley.</p>
  </li>
</template>

<script>
  export default {
    name: 'TravelChinaPage'
  }
</script>

<style scoped>

</style>

const routes = [
  {
    path: '/travel', component: TravelPage,
    children: [
      { path: '/travel/america', component: TravelAmericaPage },
      { path: '/travel/china', component: TravelChinaPage}
    ]
  },
  {
    path: '/about', component: AboutPage
  }
];

<template>
  <li id="travel">
    <h2 class="row1">Travels</h2>
    <li class="flex-container row2">
      <router-link to="/travel/america">America</router-link>
      <router-link to="/travel/china">China</router-link>
    </li>
    <router-view class="row3"></router-view>
  </li>
</template>

<script>
  export default {
    name: 'TravelPage'
  }
</script>

<style scoped>
li {
  text-align: center;
}

#travel {
  display: grid;
  grid-template-rows: 20% 40% 40%;
}

.flex-container {
  display: flex;
  justify-content: space-around;
}
</style>