ant-design/components/badge/demo/dot.md

order	title
3	zh-CN en-US 讨嫌的小红点 Red badge

zh-CN

没有具体的数字。

en-US

This will simply display a red badge, without a specific count. If count equals 0, it won't display the dot.

import { Badge, Icon } from 'antd';

ReactDOM.render(
  <div>
    <Badge dot>
      <Icon type="notification" />
    </Badge>
    <Badge count={0} dot>
      <Icon type="notification" />
    </Badge>
    <Badge dot>
      <a href="#">Link something</a>
    </Badge>
  </div>,
  mountNode
);