使用react.js JSX页面时，onClick按钮事件处理程序不起作用

<button onClick={handleClick}>Click me</button>

class MyComponent extends React.Component {
  constructor(props) {
    super(props);
    this.handleClick = this.handleClick.bind(this);
  }

  handleClick() {
    // 处理点击事件的逻辑
  }

  render() {
    return <button onClick={this.handleClick}>Click me</button>;
  }
}

function handleClick(event) {
  event.preventDefault();
  // 处理点击事件的逻辑
  return false;
}

function MyComponent() {
  const buttons = ['Button 1', 'Button 2', 'Button 3'];

  return (
    <div>
      {buttons.map((button, index) => (
        <button key={index} onClick={handleClick}>
          {button}
        </button>
      ))}
    </div>
  );
}