状态值在onSubmit之后重置，即使不成功也是如此

const [formState, setFormState] = useState({
  name: '',
  email: '',
  message: ''
});

const handleSubmit = (event) => {
  event.preventDefault();
  
  // 处理表单提交逻辑
  
  // 重置状态值
  setFormState({
    name: '',
    email: '',
    message: ''
  });
};

<form onSubmit={handleSubmit}>
  <input
    type="text"
    name="name"
    value={formState.name}
    onChange={(event) => setFormState({...formState, name: event.target.value})}
  />
  <input
    type="email"
    name="email"
    value={formState.email}
    onChange={(event) => setFormState({...formState, email: event.target.value})}
  />
  <textarea
    name="message"
    value={formState.message}
    onChange={(event) => setFormState({...formState, message: event.target.value})}
  ></textarea>
  <button type="submit">提交</button>
</form>