Vue3父传子获取值为data中的值赋值

<script>
	export default {
		props: {
			id: Number,
		},
		data() {
			return {
				user: {
					id: 0,

				}
			};
		},
		watch: {
			id: function(id) {
				this.user.id = id;
			}
		},
		methods: {}；
		mounted() {}；
	};
</script>

使用watch监听

watch: {
id: function(id) {
this.user.id = id;
}
},