Badge 标记

<Badge value={'20'}>
  <Button type="primary" size={'small'} onClick={() => {}}>
    icon
  </Button>
</Badge>

<Badge value={20} max={19}>
  <Button type="primary" size={'small'} onClick={() => {}}>
    icon
  </Button>
</Badge>

<Badge value={'20'}>
  <Button type="primary" size={'small'} onClick={() => {}}>
    icon
  </Button>
</Badge>
<div style={{ display: 'inline-block', width: '20px' }} />
<Badge value={'20'} isDot={true}>
  <Button type="primary" size={'small'} onClick={() => {}}>
    icon
  </Button>
</Badge>