我如何把它写成一个类组件呢？

import React, { Component } from 'react';

class QnAComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      question: '我如何把它写成一个类组件呢？',
      answer: '你可以按照以下步骤进行...',
    };
  }

  render() {
    const { question, answer } = this.state;

    return (
      <div>
        <h1>问答内容</h1>
        <h2>问题：</h2>
        <p>{question}</p>
        <h2>答案：</h2>
        <p>{answer}</p>
      </div>
    );
  }
}

export default QnAComponent;