如何在react中多次添加组件onclick？

import React, { Component } from 'react';

class ParentComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      components: [] // 存储子组件的数组
    };
  }

  addComponent = () => {
    const newComponent = <ChildComponent key={this.state.components.length} />;
    this.setState(prevState => ({
      components: [...prevState.components, newComponent] // 将新的子组件添加到数组中
    }));
  }

  render() {
    return (
      <div>
        {this.state.components.map(component => component)}
        <button onClick={this.addComponent}>添加组件</button>
      </div>
    );
  }
}

class ChildComponent extends Component {
  render() {
    return <div>子组件</div>;
  }
}

export default ParentComponent;