Vue3中toRef与toRefs的区别

const name = toRef(person,'name')

<template>
  <span>{{person}}</span>
  <h2>姓名：{{name}}</h2>
  <h2>年龄：{{age}}</h2>
  <h2>薪资：{{salary}}K</h2>
  <button @click="name+='~'">修改姓名</button>
  <button @click="age++">增涨年龄</button>
  <button @click="salary++">涨薪</button>
</template>
<script>
    import {Reactive,toRef,toRefs} from 'Vue'
    export default{
        name:'App',
        setup(){
            let person = reactive({
                name:'张三',
                age:18,
                job:{
                    j1:{
                        salary:20
                    }
                }
            })
            return {
                person,   //如果只是像之前一样定义reactive后 模板中需要使用属性都要加上对象名（person.name）
                name:toRef(person,'name'), 
                age:toRef(person,'age'),
                salary:toRef(person.job.j1,'salary')
                
            }
        }
    }
</script>

<script>
    import {reactive,toRef,toRefs} from 'vue'
    export default{
        name:'App',
        setup(){
            let person = reactive({
                name:'张三',
                age:18,
                job:{
                    j1:{
                        salary:20
                    }
                }
            })
            
            return {
                person,
                  ...toRefs(person) 
                
            }
        }
    }
</script>