<template>
  <p>姓名：{{ info.name }}</p>
  <p>年齡：{{ info.age }}</p>
  <p>性別：{{ info.sex }}</p>
  <button @click="editInfo">修改信息</button>
</template>
<script>
// 引入 reactive 函數(shù)
import { reactive } from 'vue'
export default {
  name: "Home",
  setup() {
    // 使用 reactive 創(chuàng)建引用數(shù)據(jù)
    const info = reactive({
      name: "張三",
      age: 20,
      sex: "男"
    });
    // 創(chuàng)建方法
    const editInfo = () => {
      info.name = "李四";
      info.age = 22;
      info.sex = "女";
      // reactive 創(chuàng)建的數(shù)據(jù)是一個(gè) proxy 對(duì)象，不需要通過 value 獲取
      console.log(info);
    }
    // 返回?cái)?shù)據(jù)
    return {
      info,
      editInfo
    }
  }
}
</script>

<template>
  <p v-for="item in userList" :key="item">{{ item }}</p>
  <button @click="editUser">修改人員</button>
</template>
<script>
// 引入 reactive 函數(shù)
import { reactive } from 'vue'
export default {
  name: "Home",
  setup() {
    // 使用 reactive 創(chuàng)建數(shù)組
    const userList = reactive(["張三", "李四", "王五"]);
    // 創(chuàng)建方法
    const editUser = () => {
      // vue3 通過下標(biāo)修改數(shù)據(jù)時(shí)，頁(yè)面也會(huì)實(shí)時(shí)更新
      userList[0] = "張三豐";
      console.log(userList);
    }
    // 返回?cái)?shù)據(jù)
    return {
      userList,
      editUser
    }
  }
}
</script>