ant-design/components/input-number/demo/size.md

order	title
1	[{zh-CN 三种大小} {en-US Sizes}]

zh-CN

三种大小的数字输入框，当 size 分别为 large 和 small 时，输入框高度为 40px 和 24px ，默认高度为 32px。

en-US

There are three sizes available to a numeric input box. By default, the size is 32px. The two additional sizes are large and small which means 40px and 24px, respectively.

import { InputNumber, Space } from 'antd';
import React from 'react';

const onChange = (value: number) => {
  console.log('changed', value);
};

const App: React.FC = () => (
  <Space>
    <InputNumber size="large" min={1} max={100000} defaultValue={3} onChange={onChange} />
    <InputNumber min={1} max={100000} defaultValue={3} onChange={onChange} />
    <InputNumber size="small" min={1} max={100000} defaultValue={3} onChange={onChange} />
  </Space>
);

export default App;