如何在React中从父类更新子组件状态？

// 父组件
import React, { useState } from 'react';
import ChildComponent from './ChildComponent';

const ParentComponent = () => {
  const [count, setCount] = useState(0);

  const updateCount = () => {
    setCount(count + 1);
  };

  return (
    <div>
      <h2>父组件状态: {count}</h2>
      <ChildComponent count={count} updateCount={updateCount} />
    </div>
  );
};

export default ParentComponent;

// 子组件
import React from 'react';

const ChildComponent = ({ count, updateCount }) => {
  return (
    <div>
      <h2>子组件状态: {count}</h2>
      <button onClick={updateCount}>更新父组件状态</button>
    </div>
  );
};

export default ChildComponent;