仅打开在Vue循环中单击的(动态创建的)下拉菜单

<template>
  <div>
    <div v-for="item in items" :key="item.id">
      <button @click="toggleDropdown(item.id)">Toggle Dropdown</button>
      <ul v-if="isDropdownOpen[item.id]">
        <!-- 下拉菜单内容 -->
      </ul>
    </div>
  </div>
</template>

<script>
export default {
  data() {
    return {
      items: [
        { id: 1, name: 'Item 1' },
        { id: 2, name: 'Item 2' },
        { id: 3, name: 'Item 3' }
      ],
      isDropdownOpen: {}
    };
  },
  methods: {
    toggleDropdown(itemId) {
      this.isDropdownOpen[itemId] = !this.isDropdownOpen[itemId];
    }
  }
};
</script>