ant-design/components/date-picker/demo/size.md

order	title
2	zh-CN en-US 三种大小 Three Sizes

zh-CN

三种大小的输入框，若不设置，则为 default。

en-US

The input box comes in three sizes. default will be used if size is omitted.

import { DatePicker, Radio } from 'antd';
const { MonthPicker, RangePicker } = DatePicker;

class PickerSizesDemo extends React.Component {
  state = {
    size: 'default',
  };

  handleSizeChange = (e) => {
    this.setState({ size: e.target.value });
  }

  render() {
    const { size } = this.state;
    return (
      <div>
        <Radio.Group value={size} onChange={this.handleSizeChange}>
          <Radio.Button value="large">Large</Radio.Button>
          <Radio.Button value="default">Default</Radio.Button>
          <Radio.Button value="small">Small</Radio.Button>
        </Radio.Group><br /><br />
        <DatePicker size={size} /><br />
        <MonthPicker size={size} /><br />
        <RangePicker size={size} />
      </div>
    );
  }
}

ReactDOM.render(<PickerSizesDemo />, mountNode);