ant-design/components/switch/demo/size.md

order	title
3	zh-CN en-US 两种大小 Two sizes

zh-CN

size="small" 表示小号开关。

en-US

size="small" represents a small sized switch.

import { Switch } from 'antd';

ReactDOM.render(
  <div>
    <Switch defaultChecked />
    <br />
    <Switch size="small" defaultChecked />
  </div>,
  mountNode);