路由完整实例代码

D:workspacexxxsrcmain.js

import Vue from 'vue'
import App from './App'
import VueRouter from 'vue-router'
import Apple from '@/components/Apple'
import RedApple from '@/components/RedApple'
import Banana from '@/components/Banana'

Vue.use(VueRouter)

let router = new VueRouter({
  mode: 'history',
  routes: [
    {
      path: '/',
      // redirect: Apple 错误示范
      redirect: '/apple'
    },
    {
      path: '/apple',
      component: Apple,
      // component: {
      //   ViewA: Apple,
      //   ViewB: RedApple
      // },
      children: [
        {
          path: 'red',
          component: RedApple
        }
      ]
    },
    {
      path: '/banana',
      component: Banana
    }
  ]
})
// router.beforeEach() 检查登录状态
/* eslint-disable no-new */
new Vue({
  el: '#app',
  router,
  template: '<App/>',
  components: { App }
})

　　

D:workspacexxxsrcApp.vue

<template>
  <div id="app">
    <img src="./assets/logo.png">
    <!-- <router-view name="ViewA"></router-view>
    <router-view name="ViewB"></router-view> -->
    <transition>
      <keep-alive>
        <router-view/>
      </keep-alive>
    </transition>
    <router-link to="/apple">to apple</router-link>
    <!-- 具名路由<router-link :to="{name: 'apple'}" tag="li">to apple</router-link> -->
    <router-link to="/banana">to banana</router-link>
    <!-- <router-link to="/apple/red">to apple red</router-link> -->
  </div>
</template>

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

<style>
#app {
  font-family: 'Avenir', Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
  margin-top: 60px;
}
</style>

　　

D:workspacexxxsrccomponentsApple.vue

<template>
    <div>
      <h1 >{{ msg }}</h1>
      <p>{{ this.$route.params.color }}</p>
      <button @click="showSize">showSize</button>
      <router-view/>
    </div>
</template>

<script>
export default {
  name: 'Apple',
  data () {
    return {
      msg: 'I am an apple'
    }
  },
  methods: {
    showSize () {
      console.log(this.$route.params)
    }
  }
}
</script>

　　D:workspacexxxsrccomponentsBanana.vue

<template>
    <h3 >{{ mg }}</h3>
</template>

<script>
export default {
  name: 'Banana',
  data () {
    return {
      mg: 'I am a banana'
    }
  }
}
</script>

　　D:workspacexxxsrccomponentsRedApple.vue

<template>
    <div>
      <h1 >{{ msg }}</h1>
      <p>{{ this.$route.params.color }}</p>
      <button @click="showSize">showSize</button>
      <router-view/>
    </div>
</template>

<script>
export default {
  name: 'RedApple',
  data () {
    return {
      msg: 'I am a red apple'
    }
  },
  methods: {
    showSize () {
      console.log(this.$route.params)
    }
  }
}
</script>