如何在集合视图中更改UIbutton？

func collectionView(_ collectionView: UICollectionView, cellForItemAt indexPath: IndexPath) -> UICollectionViewCell {
    let cell = collectionView.dequeueReusableCell(withReuseIdentifier: "Cell", for: indexPath) as! CustomCollectionViewCell
    
    // 创建UIButton
    let button = UIButton(type: .system)
    button.frame = CGRect(x: 0, y: 0, width: cell.frame.width, height: cell.frame.height)
    button.setTitle("Button", for: .normal)
    button.addTarget(self, action: #selector(buttonTapped(_:)), for: .touchUpInside)
    
    // 设置按钮样式
    button.backgroundColor = .blue
    button.setTitleColor(.white, for: .normal)
    
    // 将按钮添加到单元格中
    cell.addSubview(button)
    
    return cell
}

@objc func buttonTapped(_ sender: UIButton) {
    // 获取按钮所在的单元格
    guard let cell = sender.superview as? UICollectionViewCell else {
        return
    }
    
    // 更改按钮的UI
    sender.backgroundColor = .red
    sender.setTitleColor(.black, for: .normal)
    
    // 可以根据需要执行其他操作
}