将带有"static get defaultProps()“的React类转换为函数组件

// 类组件
class MyComponent extends React.Component {
  static defaultProps = {
    name: 'John',
    age: 25
  };

  render() {
    return (
      <div>
        <p>Name: {this.props.name}</p>
        <p>Age: {this.props.age}</p>
      </div>
    );
  }
}

// 函数组件
function MyComponent(props) {
  const { name, age } = props;

  return (
    <div>
      <p>Name: {name}</p>
      <p>Age: {age}</p>
    </div>
  );
}

MyComponent.defaultProps = {
  name: 'John',
  age: 25
};

// 类组件
class MyComponent extends React.Component {
  componentDidMount() {
    console.log('Component mounted');
  }

  render() {
    return (
      <div>
        <p>Hello, World!</p>
      </div>
    );
  }
}

// 函数组件
function MyComponent() {
  useEffect(() => {
    console.log('Component mounted');
  }, []);

  return (
    <div>
      <p>Hello, World!</p>
    </div>
  );
}

// 类组件
class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.state = {
      count: 0
    };
  }

  render() {
    return (
      <div>
        <p>Count: {this.state.count}</p>
        <button onClick={() => this.setState({ count: this.state.count + 1 })}>
          Increment
        </button>
      </div>
    );
  }
}

// 函数组件
function MyComponent() {
  const [count, setCount] = useState(0);

  return (
    <div>
      <p>Count: {count}</p>
      <button onClick={() => setCount(count + 1)}>Increment</button>
    </div>
  );
}