ant-design/components/upload/demo/max-count.md

order	title
10	[{zh-CN 限制数量} {en-US Max Count}]

zh-CN

通过 maxCount 限制上传数量。当为 1 时，始终用最新上传的代替当前。

en-US

Limit files with maxCount. Will replace current one when maxCount is 1.

import { UploadOutlined } from '@ant-design/icons';
import { Button, Space, Upload } from 'antd';
import React from 'react';

const App: React.FC = () => (
  <Space direction="vertical" style={{ width: '100%' }} size="large">
    <Upload
      action="https://www.mocky.io/v2/5cc8019d300000980a055e76"
      listType="picture"
      maxCount={1}
    >
      <Button icon={<UploadOutlined />}>Upload (Max: 1)</Button>
    </Upload>
    <Upload
      action="https://www.mocky.io/v2/5cc8019d300000980a055e76"
      listType="picture"
      maxCount={3}
      multiple
    >
      <Button icon={<UploadOutlined />}>Upload (Max: 3)</Button>
    </Upload>
  </Space>
);

export default App;