vue二级路由-路由守卫-组合api

vue 二级路由

效果

在二级路由利用路由守卫监听效果

组合api

代码如下

<template>
  <nav>
    <router-link to="/">首页</router-link> |
    <router-link to="/about">关于我们</router-link>
  </nav>
  <router-view />
  <div>{{data.num}}</div>
  <button @click="fun">点赞</button>
</template>
<script setup>
import { reactive } from "vue";
    const data  = reactive({
      num : 100
    })
    const  fun = () =>{
       data.num++;
    }
</script>
<style lang="scss">
#app {
  font-family: Avenir, Helvetica, Arial, sans-serif;
  -webkit-font-smoothing: antialiased;
  -moz-osx-font-smoothing: grayscale;
  text-align: center;
  color: #2c3e50;
}
nav {
  padding: 30px;
  a {
    font-weight: bold;
    color: #2c3e50;
    &.router-link-exact-active {
      color: #42b983;
    }
  }
}
</style>

效果