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31 lines
548 B
31 lines
548 B
2 years ago
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<template>
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<div className="app">
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<h3>我是app组件（祖）{{ name }}-{{ price }}</h3>
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<child/>
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</div>
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</template>
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<script>
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import child from "@/components/Child.vue";
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import {reactive, toRefs, provide} from "vue";
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export default {
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name: 'App',
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components: {child},
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setup() {
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let car = reactive({
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name: '奔驰',
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price: '40W'
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})
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provide('car', car) //给自己的后代组件传递数据
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return {...toRefs(car)}
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}
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}
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</script>
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<style>
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.app {
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background-color: gray;
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padding: 10px;
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}
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</style>
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