ant-design/components/date-picker/demo/extra-footer.md

order	title
10	zh-CN en-US 额外的页脚 Extra Footer

zh-CN

在浮层中加入额外的页脚，以满足某些定制信息的需求。

en-US

Render extra footer in panel for customized requirements.

import { DatePicker } from 'antd';
const { RangePicker } = DatePicker;

ReactDOM.render(
  <div>
    <DatePicker renderExtraFooter={() => 'extra footer'} />
    <DatePicker renderExtraFooter={() => 'extra footer'} showTime />
    <RangePicker renderExtraFooter={() => 'extra footer'} />
    <RangePicker renderExtraFooter={() => 'extra footer'} showTime />
  </div>
, mountNode);