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

order	title
4	[{zh-CN 附加内容} {en-US Extra content}]

zh-CN

可以在页签右边添加附加操作。

en-US

You can add extra actions to the right of Tabs.

import { Tabs, Button } from 'antd';
const TabPane = Tabs.TabPane;

const operations = <Button>Extra Action</Button>;

ReactDOM.render(
  <Tabs tabBarExtraContent={operations}>
    <TabPane tab="Tab 1" key="1">Content of tab 1</TabPane>
    <TabPane tab="Tab 2" key="2">Content of tab 2</TabPane>
    <TabPane tab="Tab 3" key="3">Content of tab 3</TabPane>
  </Tabs>
, mountNode);