如何在swift中动态创建单选按钮？

import UIKit

class ViewController: UIViewController {
    
    var radioButtonArray = [UIButton]() // 用于存储单选按钮的数组
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建单选按钮
        createRadioButton(title: "Option 1", position: CGPoint(x: 50, y: 100))
        createRadioButton(title: "Option 2", position: CGPoint(x: 50, y: 150))
        createRadioButton(title: "Option 3", position: CGPoint(x: 50, y: 200))
    }
    
    func createRadioButton(title: String, position: CGPoint) {
        let radioButton = UIButton(type: .system)
        radioButton.frame = CGRect(x: position.x, y: position.y, width: 20, height: 20)
        radioButton.setTitle(title, for: .normal)
        radioButton.addTarget(self, action: #selector(radioButtonTapped(_:)), for: .touchUpInside)
        
        // 设置按钮的外观
        radioButton.layer.cornerRadius = 10
        radioButton.layer.borderWidth = 1
        radioButton.layer.borderColor = UIColor.black.cgColor
        
        // 将按钮添加到视图中
        view.addSubview(radioButton)
        
        // 将按钮添加到数组中
        radioButtonArray.append(radioButton)
    }
    
    @objc func radioButtonTapped(_ sender: UIButton) {
        // 遍历单选按钮数组，将选中的按钮设置为选中状态，其他按钮设置为非选中状态
        for button in radioButtonArray {
            button.isSelected = (button == sender)
        }
    }
}