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

order	title
2	zh-CN en-US 封顶数字 Overflow Count

zh-CN

超过 overflowCount 的会显示为 ${overflowCount}+，默认的 overflowCount 为 99。

en-US

${overflowCount}+ is displayed when count is larger than overflowCount. The default value of overflowCount is 99.

import { Avatar, Badge } from 'antd';
import React from 'react';

const App: React.FC = () => (
  <>
    <Badge count={99}>
      <Avatar shape="square" size="large" />
    </Badge>
    <Badge count={100}>
      <Avatar shape="square" size="large" />
    </Badge>
    <Badge count={99} overflowCount={10}>
      <Avatar shape="square" size="large" />
    </Badge>
    <Badge count={1000} overflowCount={999}>
      <Avatar shape="square" size="large" />
    </Badge>
  </>
);

export default App;