Dropdown 下拉菜单 ​

<template>
  <div style="height: 200px">
    <v-dropdown title="下拉">
      <v-dropdown-item>item1</v-dropdown-item>
      <v-dropdown-item>item2</v-dropdown-item>
      <v-dropdown-item>item3</v-dropdown-item>
      <v-dropdown-item>item4</v-dropdown-item>
    </v-dropdown>
  </div>
</template>