在react应用程序中创建首次访问弹出窗口？

import React, { useState } from 'react';
import Modal from 'react-modal';

const App = () => {
  const [isOpen, setIsOpen] = useState(false);

  const openModal = () => {
    setIsOpen(true);
  };

  const closeModal = () => {
    setIsOpen(false);
  };

  return (
    <div>
      <button onClick={openModal}>打开弹出窗口</button>
      <Modal isOpen={isOpen} onRequestClose={closeModal}>
        {/* 弹出窗口的内容 */}
        <h2>首次访问弹出窗口</h2>
        <p>欢迎访问我们的网站！</p>
        <button onClick={closeModal}>关闭</button>
      </Modal>
    </div>
  );
};

export default App;