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;

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,
);