一文带你了解Vue3中toRef和toRefs的用法

 <template>
  <h3>姓名：{{ person.name }}</h3>
  <h3>年龄：{{ person.age }}</h3>
  <h3>薪资：{{ person.job.j1.salary }}</h3>
  <button @click="person.name += '!'">修改姓名</button>
  <button @click="person.age++">增长年龄</button>
  <button @click="person.job.j1.salary++">涨薪</button>
</template>
 
<script>
import { reactive } from "vue";
export default {
  setup() {
    let person = reactive({
      name: "张三",
      age: 18,
      job: {
        j1: {
          salary: 20,
        },
      },
    });
    return {
      person,
    };
  },
};
</script>
 
<style>
</style>

 return {
      name: person.name,
      age: person.age,
      job: person.job.j1.salary,
    }; 

 <template>
  <h3>姓名：{{ name }}</h3>
  <h3>年龄：{{ age }}</h3>
  <h3>薪资：{{ salary }}</h3>
  <button @click="name += '!'">修改姓名</button>
  <button @click="age++">增长年龄</button>
  <button @click="salary++">涨薪</button>
</template>
 
<script>
import { reactive, toRef } from "vue";
export default {
  setup() {
    let person = reactive({
      name: "张三",
      age: 18,
      job: {
        j1: {
          salary: 20,
        },
      },
    });
    return {
      name: toRef(person, "name"),
      age: toRef(person, "age"),
      salary: toRef(person.job.j1, "salary"),
    };
  },
};
</script>
 
<style>
</style>