如何在Vue JS中使用嵌套循环？

<template>
  <div>
    <div v-for="item in items" :key="item.id">
      <h2>{{ item.title }}</h2>
      <ul>
        <li v-for="subItem in item.subItems" :key="subItem.id">
          {{ subItem.name }}
        </li>
      </ul>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      items: [
        {
          id: 1,
          title: 'Item 1',
          subItems: [
            { id: 1, name: 'Sub Item 1' },
            { id: 2, name: 'Sub Item 2' },
            { id: 3, name: 'Sub Item 3' }
          ]
        },
        {
          id: 2,
          title: 'Item 2',
          subItems: [
            { id: 4, name: 'Sub Item 4' },
            { id: 5, name: 'Sub Item 5' }
          ]
        }
      ]
    };
  }
};
</script>