<div v-for="item in items" :key="item.id">
  <img :src="item.imageUrl" alt="图片">
</div>

<template>
  <div>
    <div v-for="item in computedItems">
      <img :src="item.imageUrl" alt="图片">
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      items: [
        { id: 1, imageUrl: '图片1的URL' },
        { id: 2, imageUrl: '图片2的URL' },
        { id: 3, imageUrl: '图片3的URL' }
      ]
    };
  },
  computed: {
    computedItems() {
      return this.items.map(item => ({ ...item }));
    }
  }
};
</script>