如何返回输入内容- JavaScript/React

import React, { useState } from 'react';

function InputComponent() {
  const [inputValue, setInputValue] = useState('');

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

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

import React, { useState } from 'react';

function InputComponent() {
  const [inputValue, setInputValue] = useState('');

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

  const handleSubmit = (event) => {
    event.preventDefault();
    console.log(inputValue); // 返回输入内容
  };

  return (
    <form onSubmit={handleSubmit}>
      <input type="text" value={inputValue} onChange={handleInputChange} />
      <button type="submit">提交</button>
    </form>
  );
}

import React, { useRef } from 'react';

function InputComponent() {
  const inputRef = useRef(null);

  const handleSubmit = (event) => {
    event.preventDefault();
    console.log(inputRef.current.value); // 返回输入内容
  };

  return (
    <form onSubmit={handleSubmit}>
      <input type="text" ref={inputRef} />
      <button type="submit">提交</button>
    </form>
  );
}