获取单个Dom

<input type="text" ref="inputRef" />
setup() {
	const inputRef = ref(null)
	onMounted(()=>{
		console.log(inputRef.value);
	})
}

获取多个Dom

<div v-for="(item, index) in state.list" :key="index" :ref="setItemRef">
	{{item}}
</div>

setup() {
	let itemRef = ref([])
	let state = reactive([])
	const setItemRef = (el) => {
		itemRef.value.push(el)
	}
	onMounted(()=>{
		// 模拟调用接口
		setTimeout(()=>{
			state.curMenuList = [1,2,3]
		},1000)
	})
	onBeforeUpdate(() => {
		itemRef.value = [];
	});
	
	onUpdated(()=>{
		itemRef.value.map(d=>{
			d.style.height = '100px'
		})
	})
	return {
		state,
		setItemRef,
	}
}