React:当子组件中发生onClick事件时如何在父组件中触发事件

class ParentComponent extends React.Component {
  handleChildClick = () => {
    console.log('子组件点击事件已触发');
  };

  render() {
    return (
      <div>
        <h1>这是父组件</h1>
        <ChildComponent onClick={this.handleChildClick} />
      </div>
    );
  }
}

class ChildComponent extends React.Component {
  render() {
    return (
      <div>
        <h2>这是子组件</h2>
        <button onClick={this.props.onClick}>点击我通知父组件</button>
      </div>
    );
  }
}

import PropTypes from 'prop-types';

ChildComponent.propTypes = {
  onClick: PropTypes.func,
};

ChildComponent.defaultProps = {
  onClick: () => {},
};