UIScrollView跳转特定页面

import UIKit

class ViewController: UIViewController, UIScrollViewDelegate {
    var scrollView: UIScrollView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建UIScrollView对象
        scrollView = UIScrollView(frame: view.bounds)
        scrollView.contentSize = CGSize(width: view.bounds.width * 3, height: view.bounds.height)
        scrollView.isPagingEnabled = true
        scrollView.delegate = self
        
        // 添加子视图到UIScrollView中
        let view1 = UIView(frame: CGRect(x: 0, y: 0, width: view.bounds.width, height: view.bounds.height))
        view1.backgroundColor = UIColor.red
        scrollView.addSubview(view1)
        
        let view2 = UIView(frame: CGRect(x: view.bounds.width, y: 0, width: view.bounds.width, height: view.bounds.height))
        view2.backgroundColor = UIColor.green
        scrollView.addSubview(view2)
        
        let view3 = UIView(frame: CGRect(x: view.bounds.width * 2, y: 0, width: view.bounds.width, height: view.bounds.height))
        view3.backgroundColor = UIColor.blue
        scrollView.addSubview(view3)
        
        // 将UIScrollView添加到父视图中
        view.addSubview(scrollView)
    }
    
    // UIScrollViewDelegate方法，处理滚动事件
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        // 滚动到第二个页面时，跳转到第三个页面
        if scrollView.contentOffset.x >= view.bounds.width {
            scrollView.setContentOffset(CGPoint(x: view.bounds.width * 2, y: 0), animated: true)
        }
    }
}