<template>
  <div class="app">
    <h3>我是app组件（祖）</h3>
  </div>
</template>

<script>
import {reactive, ref, toRefs, provide, readonly, isReactive, isRef, isReadonly, isProxy} from "vue";

export default {
  name: 'App',
  setup() {
    let car = reactive({
      name:'奔驰',
      price: '40W'
    })
    let car2 = readonly(car)
    let sum = ref(0)

    console.log(isRef(sum))
    console.log(isReactive(car))
    console.log(isReadonly(car2))
    console.log(isProxy(car))

    return {...toRefs(car)}
  }
}
</script>

<style>
  .app{
    background-color: gray;
    padding: 10px;
  }
</style>