尝试将useState与类型一起使用

import React, { useState } from 'react';

function Example() {
  const [userInfo, setUserInfo] = useState({
    name: '',
    age: 0,
    email: ''
  });

  const handleChange = (e) => {
    const { name, value } = e.target;
    setUserInfo(prevState => ({
      ...prevState,
      [name]: value
    }));
  }

  return (
    <div>
      <input
        type="text"
        name="name"
        value={userInfo.name}
        onChange={handleChange}
      />
      <input
        type="number"
        name="age"
        value={userInfo.age}
        onChange={handleChange}
      />
      <input
        type="email"
        name="email"
        value={userInfo.email}
        onChange={handleChange}
      />
    </div>
  );
}