在swift中更新pickerView的didSelectRow上的图像

import UIKit

class ViewController: UIViewController, UIPickerViewDelegate, UIPickerViewDataSource {
    
    @IBOutlet weak var pickerView: UIPickerView!
    @IBOutlet weak var imageView: UIImageView!
    
    let imageNames = ["image1", "image2", "image3"] // 图像名称数组
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        pickerView.delegate = self
        pickerView.dataSource = self
    }
    
    // MARK: - UIPickerViewDataSource
    
    func numberOfComponents(in pickerView: UIPickerView) -> Int {
        return 1 // 单个组件
    }
    
    func pickerView(_ pickerView: UIPickerView, numberOfRowsInComponent component: Int) -> Int {
        return imageNames.count // 行数为图像名称数组的元素个数
    }
    
    func pickerView(_ pickerView: UIPickerView, titleForRow row: Int, forComponent component: Int) -> String? {
        return imageNames[row] // 返回每行的图像名称
    }
    
    // MARK: - UIPickerViewDelegate
    
    func pickerView(_ pickerView: UIPickerView, didSelectRow row: Int, inComponent component: Int) {
        let imageName = imageNames[row] // 获取选中行的图像名称
        let image = UIImage(named: imageName) // 创建UIImage对象
        imageView.image = image // 更新图像显示
    }
}