使用UIScrollView的图像滑块

import UIKit

class ViewController: UIViewController, UIScrollViewDelegate {
    var scrollView: UIScrollView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建UIScrollView对象
        scrollView = UIScrollView(frame: CGRect(x: 0, y: 0, width: view.frame.width, height: view.frame.height))
        scrollView.contentSize = CGSize(width: view.frame.width * 3, height: view.frame.height)
        scrollView.isPagingEnabled = true
        scrollView.delegate = self
        
        // 创建UIImageView对象并添加到UIScrollView中
        for i in 0..<3 {
            let imageView = UIImageView(frame: CGRect(x: view.frame.width * CGFloat(i), y: 0, width: view.frame.width, height: view.frame.height))
            imageView.image = UIImage(named: "image\(i+1)")
            scrollView.addSubview(imageView)
        }
        
        // 将UIScrollView添加到父视图中
        view.addSubview(scrollView)
    }
    
    // UIScrollViewDelegate方法，监听滑动事件
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        // 滑动时的逻辑处理
    }
}