<template>
    <div class="ref_test">
        <div v-for="(item, index) in dataList" :key="index" :ref="'refName' + index" @click="clickGetRef(index)">
            <p>{{ item.title }}</p>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            dataList: [
                {
                    "id": 1,
                    "title": "這是來測試如何獲取動態(tài)ref的"
                },
                {
                    "id": 2,
                    "title": "第2條數(shù)據(jù)"
                },
                {
                    "id": 3,
                    "title": "第3條數(shù)據(jù)"
                },
                {
                    "id": 4,
                    "title": "第4條數(shù)據(jù)"
                },
            
            ]
        }
    },
    methods: {
        clickGetRef(index) {
            let ref = eval('this.$refs.refName' + index)[0]
            console.log(ref);
        }
    },
}
</script>

<style></style>

let ref = eval('this.$refs.XXX' + (index + i))[0]
或者
let ref = eval('this.$refs.XXX' + (item.id))[0]

<template>
    <div>
        <div class="ref_double_test">
            <div v-for="(item, index) in dataLists" :key="index">
                <div class="content" v-for="(sonItem, i) in item.sonList" :key="index + i" @click="clickGetDoubleRef(index, i, sonItem)">
                    <!-- 方式一：用索引的方式，用一個索引可能會重復，為防止重復，則用兩個索引【index + i】 -->
                    <div :ref="'refName1' + (index + i)">{{ item.title }}</div> ----
                    <!-- 方式二：用id的方式 -->
                    <div :ref="'refName2' + sonItem.sonId">{{ sonItem.sonContent }}</div>
                </div>
            </div>
        </div>
    </div>
</template>

<script>
export default {
    data() {
        return {
            dataLists: [
                {
                    "id": 1,
                    "title": "第1條數(shù)據(jù)",
                    "sonList": [
                        { "sonId": 1, "sonContent": "子集第1條數(shù)據(jù)" },
                        { "sonId": 2, "sonContent": "子集第2條數(shù)據(jù)" },
                    ]
                },
                {
                    "id": 2,
                    "title": "第2條數(shù)據(jù)",
                    "sonList": [
                        { "sonId": 11, "sonContent": "子集第11條數(shù)據(jù)" },
                        { "sonId": 22, "sonContent": "子集第22條數(shù)據(jù)" },
                    ]
                },
                {
                    "id": 3,
                    "title": "第3條數(shù)據(jù)",
                    "sonList": [
                        { "sonId": 111, "sonContent": "子集第111條數(shù)據(jù)" },
                        { "sonId": 222, "sonContent": "子集第222條數(shù)據(jù)" },
                    ]
                }
            ]
        }
    },
    methods: {
        clickGetDoubleRef(index, i, sonItem) {
            // 方式一
            let ref1 = eval('this.$refs.refName1' + (index + i))[0]
            console.log('ref1', ref1);

            // 方式二
            let ref2 = eval('this.$refs.refName2' + sonItem.sonId)[0]
            console.log('ref2', ref2);
        }
    },
}
</script>

<style>
.ref_test {
    width: 500px;
    height: 100px;
    border: 1px solid gray;
}
.content {
    width: 500px;
    height: 30px;
    display: flex;
    background: rebeccapurple;
    margin-bottom: 10px;
}
</style>