1、路由嵌套

路由嵌套逻辑：

router.index.js中使用children嵌套子路由

//该文件专门用于创建整个文件的路由器
import VueRouter from 'vue-router'

import About from "@/pages/About";
import Home from "@/pages/Home";
import News from "@/pages/News";
import Message from "@/pages/Message";
import Detail from "@/pages/Detail";
//创建一个路由器
export default new VueRouter({
    routes:[
        {
            path:'/about',
            component:About,
            children:[

            ]
        },
        {
            path:'/home',
            component:Home,
            children:[
                {
                    path:'news',   //此处不要写/news
                    component:News,
                },
                {
                    path: 'message',
                    component: Message,
                    children:[
                        {
                            path:'detail',
                            component:Detail
                        }
                    ]

                }
            ]
        }
    ]
})

2.路由传参的几种方法

首先说一下router-link跳转路由的几种方式：

        1、不携带参数的跳转

<router-link active-class="active" to="/home/message">Message</router-link>

        2、跳转路由并且携带query参数，to的字符串写法

<router-link :to="`/home/message/detail?id=${ml.id}&title=${ml.title}`">{{ml.title}}</router-link>

        3、跳转路由并且携带query参数，to的对象写法

<router-link :to="{
          path:'/home/message/detail',
          query:{
            id:ml.id,
            title:ml.title
          }
        }">
          {{ml.title}}
        </router-link>

路由带参跳转实现过程如下：

Message.vue

<template>
  <div>
    <ul>
      <li v-for="ml in messageList" :key="ml.id">
<!--        &lt;!&ndash;跳转路由并且携带query参数，to的字符串写法&ndash;&gt;
        <router-link :to="`/home/message/detail?id=${ml.id}&title=${ml.title}`">{{ml.title}}</router-link>-->
        <router-link :to="{
          path:'/home/message/detail',
          query:{
            id:ml.id,
            title:ml.title
          }
        }">
          {{ml.title}}
        </router-link>
      </li>
    </ul>
    <router-view></router-view>
  </div>
</template>

<script>
export default {
  name: "MyMessage",
  data(){
    return{
      messageList:[
        {id:'001',title:'消息001'},
        {id:'002',title:'消息002'},
        {id:'003',title:'消息003'},
        {id:'004',title:'消息004'},
      ]
    }
  }
}
</script>

<style scoped>

</style>

Detail.vue

<template>
  <div>
    <h3>
      <ul>
        <li>{{$route.query.id}}</li>
        <li>{{$route.query.title}}</li>
      </ul>
    </h3>
  </div>

</template>

<script>
export default {
  name: "MyDetail"
}
</script>

<style scoped>

</style>