ant-design/components/float-button/demo/tooltip.md

order	title
4	zh-CN en-US 含有气泡卡片的悬浮按钮 FloatButton with tooltip

zh-CN

设置 tooltip 属性，即可开启气泡卡片

en-US

Setting tooltip prop to show FloatButton with tooltip.

import React from 'react';
import { FloatButton } from 'antd';

const App: React.FC = () => (
  <div>
    <span>查看右下角的 FloatButton</span>
    <FloatButton tooltip={<div>帮助文档</div>} />
  </div>
);

export default App;