ant-design-vue/components/tabs/demo/extra.md

#### 附加内容 可以在页签右边添加附加操作。 #### Extra content You can add extra actions to the right of Tabs.

<template>
  <a-tabs>
    <a-tab-pane tab="Tab 1" key="1">Content of tab 1</a-tab-pane>
    <a-tab-pane tab="Tab 2" key="2">Content of tab 2</a-tab-pane>
    <a-tab-pane tab="Tab 3" key="3">Content of tab 3</a-tab-pane>
    <a-button slot="tabBarExtraContent">Extra Action</a-button>
  </a-tabs>
</template>