ref函数处理基本类型

• 入口文件main.js

import { createApp } from 'vue';
import App from './App.vue';

createApp(App).mount('#app')

• App.vue

<template>
  <h1>个人信息</h1>
  <h2>姓名：{{name}}</h2>
  <h2>年龄：{{age}}</h2>
  <button @click="changeInfo">修改个人信息</button>
</template>

<script>
import {ref} from "vue";

export default {
  name: 'App',
  setup(){
    let name = ref("张三");
    let age = ref(18);

    function changeInfo(){
      name.value = "李四";
      age.value = 28;
    }

    return {
      name,
      age,
      changeInfo
    }
  }
}
</script>

• 启动应用，测试效果
  

ref函数处理对象类型

• 入口文件main.js

import { createApp } from 'vue';
import App from './App.vue';

createApp(App).mount('#app')

• App.vue

<template>
  <h1>个人信息</h1>
  <h2>姓名：{{name}}</h2>
  <h2>年龄：{{age}}</h2>
  <h2>岗位：{{job.position}}</h2>
  <h2>薪酬：{{job.salary}}</h2>
  <button @click="changeInfo">修改个人信息</button>
</template>

<script>
import {ref} from "vue";

export default {
  name: 'App',
  setup(){
    let name = ref("张三");
    let age = ref(18);
    let job = ref({
      position:"前端工程师",
      salary:"30k"
    });

    function changeInfo(){
      name.value = "李四";
      age.value = 28;

      job.value.position = "Java工程师";
      job.value.salary = "60k";
    }

    return {
      name,
      age,
      job,
      changeInfo
    }
  }
}
</script>

• 启动应用，测试效果