如何更改react组件的子属性

import React, { Component } from 'react';

class ParentComponent extends Component {
  constructor(props) {
    super(props);
    this.state = {
      childProps: {
        name: 'John',
        age: 25
      }
    };
  }

  handleChangeChildProps = () => {
    // 创建一个新的子属性对象
    const newChildProps = {
      name: 'Jane',
      age: 30
    };

    // 更新父组件的state，将新的子属性对象赋值给childProps
    this.setState({ childProps: newChildProps });
  }

  render() {
    return (
      <div>
        <ChildComponent {...this.state.childProps} />
        <button onClick={this.handleChangeChildProps}>更改子属性</button>
      </div>
    );
  }
}

const ChildComponent = (props) => {
  return (
    <div>
      <p>姓名：{props.name}</p>
      <p>年龄：{props.age}</p>
    </div>
  );
}

export default ParentComponent;