如何在React上只打开一个面板？

import React, { Component } from 'react';

class Panel extends Component {
  constructor(props) {
    super(props);
    this.state = {
      isOpen: false, // 初始状态为关闭
    };
  }

  handleTogglePanel = () => {
    this.setState(prevState => ({
      isOpen: !prevState.isOpen, // 切换状态
    }));
  }

  render() {
    const { isOpen } = this.state;

    return (
      <div>
        <button onClick={this.handleTogglePanel}>
          {isOpen ? '关闭面板' : '打开面板'}
        </button>
        {isOpen && (
          <div>
            // 面板内容
          </div>
        )}
      </div>
    );
  }
}