如何在react中将表单值从子组件传递到父组件

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

function ParentComponent() {
  const [formValue, setFormValue] = useState('');

  // 处理表单值的函数
  const handleFormValue = (value) => {
    setFormValue(value);
  };

  return (
    <div>
      <ChildComponent handleFormValue={handleFormValue} />
      <p>表单值：{formValue}</p>
    </div>
  );
}

export default ParentComponent;

// 子组件
import React, { useState } from 'react';

function ChildComponent({ handleFormValue }) {
  const [inputValue, setInputValue] = useState('');

  const handleChange = (event) => {
    setInputValue(event.target.value);
  };

  const handleSubmit = () => {
    handleFormValue(inputValue);
  };

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

export default ChildComponent;