Vue3使用ref与reactive创建响应式对象的示例代码

<template>
   <div class="person">
     <h2>姓名：{{name}}</h2>
     <h2>年龄：{{age}}</h2>
     <h2>地址：{{address}}</h2>
     <button @click="changeName">修改名字</button>
     <button @click="changeAge">修改年龄</button>
     <button @click="showTel">查看联系方式</button>
   </div>
 </template>
 
 <script lang="ts" setup name="Person11">
   import {ref} from 'vue'
   let name = ref('馒头')
   let age = ref(18)
   let tel = '11514611254'
   let address = '北京市'
 

   function changeName() {
     name.value = 'zhang-san' 
     console.log(name) 
   }
   function changeAge() {
     age.value += 1 
     console.log(age) 
   }
   function showTel() {
     alert(tel)
   }
 </script>
 
 <style scoped>
   .person {
     background-color: skyblue;
     box-shadow: 0 0 10px;
     border-radius: 10px;
     padding: 20px;
   }
   button {
     margin: 0 5px;
   }
 </style>

<template>
   <div class="person">
     <h2>{{Handmade.name}}手办，价值{{ Handmade.price }}元</h2>
     <button @click="changePrice">修改价格</button>
   </div>
 </template>
 
 <script lang="ts" setup name="Person11">
   import {reactive} from 'vue'
   let Handmade = reactive({name:'小舞',price:888})

   function changePrice() {
     Handmade.price += 50
   }
  
 </script>

<template>
   <div class="person">
     <h2>{{Handmade.name}}手办，价值{{ Handmade.price }}元</h2>
     <button @click="changePrice">修改价格</button>
     <br>
     <h2>运动：</h2>
      <ul>
        <li v-for="i in sports" :key="i.id">{{i.name}}</li>
      </ul>
      <button @click="changeFirstGame">修改第一个运动的名字</button>
   </div>
 </template>
 
 <script lang="ts" setup name="Person11">
  import {reactive} from 'vue'
  let Handmade = reactive({name:'小舞',price:888})
  let sports = reactive([
    {id:'a',name:'足球'},
    {id:'b',name:'篮球'},
    {id:'c',name:'乒乓球'}
  ])
   function changePrice() {
     Handmade.price += 50
   }
   function changeFirstGame(){
    sports[0].name = '羽毛球'
  }
  
 </script>

let obj = reactive({
    a:{
      b:{
        c:666
      }
    }
  })

 <script lang="ts" setup name="Person11">
  import {ref} from 'vue'
  let Handmade = ref({name:'小舞',price:888})
  let sports = ref([
    {id:'a',name:'足球'},
    {id:'b',name:'篮球'},
    {id:'c',name:'乒乓球'}
  ])
   function changePrice() {
     Handmade.value.price += 50
   }
   function changeFirstGame(){
    sports.value[0].name = '羽毛球'
  }
  
 </script>