如何从子组件向父组件发送值？(功能组件)

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

const ParentComponent = () => {
  const [valueFromChild, setValueFromChild] = useState('');

  const handleValueFromChild = (value) => {
    setValueFromChild(value);
  };

  return (
    <div>
      <ChildComponent onValueChange={handleValueFromChild} />
      <p>Value from child: {valueFromChild}</p>
    </div>
  );
};

export default ParentComponent;

import React, { useState } from 'react';

const ChildComponent = ({ onValueChange }) => {
  const [inputValue, setInputValue] = useState('');

  const handleChange = (e) => {
    setInputValue(e.target.value);
    onValueChange(e.target.value); // 调用父组件传递的回调函数，将值传递给父组件
  };

  return (
    <div>
      <input type="text" value={inputValue} onChange={handleChange} />
    </div>
  );
};

export default ChildComponent;