关闭弹窗文件列表依然存在问题

1.随机数完美解决

import { Modal, Upload, Button } from 'antd';
import { InboxOutlined } from '@ant-design/icons';
FileUpload(sub) {
	return <div key={Math.random()}>
		<Dragger
		 	 defaultFileList={sub.defaultFileList}
		     beforeUpload={(f, fList) => false}
		     onChange={sub.handleFileChange}
		     maxCount={1}
		     accept={'.xlsx,.xls'}
		 >
		     <p className="ant-upload-drag-icon">
		         <InboxOutlined />
		     </p>
		     <p className="ant-upload-text">点击或将文件拖拽到这里上传</p>
		     <p className="ant-upload-hint">
		         仅支持扩展名：.xlsx,.xls
		     </p>
		 </Dragger>
	</div>
}