You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
|
|
|
|
<template>
|
|
|
|
|
<div class="app">
|
|
|
|
|
<h3>我是app组件（祖）{{name}}-{{price}}</h3>
|
|
|
|
|
<child/>
|
|
|
|
|
</div>
|
|
|
|
|
</template>
|
|
|
|
|
|
|
|
|
|
<script>
|
|
|
|
|
import child from "@/components/Child.vue";
|
|
|
|
|
import {reactive, toRefs, provide} from "vue";
|
|
|
|
|
|
|
|
|
|
export default {
|
|
|
|
|
name: 'App',
|
|
|
|
|
components:{child},
|
|
|
|
|
setup() {
|
|
|
|
|
let car = reactive({
|
|
|
|
|
name:'奔驰',
|
|
|
|
|
price: '40W'
|
|
|
|
|
})
|
|
|
|
|
provide('car', car) //给自己的后代组件传递数据
|
|
|
|
|
return {...toRefs(car)}
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
</script>
|
|
|
|
|
|
|
|
|
|
<style>
|
|
|
|
|
.app{
|
|
|
|
|
background-color: gray;
|
|
|
|
|
padding: 10px;
|
|
|
|
|
}
|
|
|
|
|
</style>
|
