React单选按钮不会改变

import React, { useState } from 'react';

function RadioButtonExample() {
  const [selectedValue, setSelectedValue] = useState('');

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

  return (
    <div>
      <label>
        <input
          type="radio"
          value="option1"
          checked={selectedValue === 'option1'}
          onChange={handleChange}
        />
        Option 1
      </label>
      <label>
        <input
          type="radio"
          value="option2"
          checked={selectedValue === 'option2'}
          onChange={handleChange}
        />
        Option 2
      </label>
    </div>
  );
}

export default RadioButtonExample;

<label>
  <input
    type="radio"
    name="group1"
    value="option1"
    checked={selectedValue === 'option1'}
    onChange={handleChange}
  />
  Option 1
</label>
<label>
  <input
    type="radio"
    name="group1"
    value="option2"
    checked={selectedValue === 'option2'}
    onChange={handleChange}
  />
  Option 2
</label>

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

<input
  type="radio"
  value="option1"
  checked={selectedValue === 'option1'}
  onChange={handleChange}
/>