如何将UIScrollview与UIPagecontrol结合使用以显示不同的视图？

import UIKit

class ViewController: UIViewController, UIScrollViewDelegate {

    @IBOutlet weak var scrollView: UIScrollView!
    @IBOutlet weak var pageControl: UIPageControl!
    
    let numberOfViews = 3
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        scrollView.delegate = self
        scrollView.isPagingEnabled = true
        
        // 设置UIScrollView的contentSize
        scrollView.contentSize = CGSize(width: scrollView.frame.width * CGFloat(numberOfViews), height: scrollView.frame.height)
        
        // 创建并添加要显示的视图
        for i in 0..<numberOfViews {
            let view = UIView(frame: CGRect(x: scrollView.frame.width * CGFloat(i), y: 0, width: scrollView.frame.width, height: scrollView.frame.height))
            view.backgroundColor = UIColor(red: CGFloat(i)/CGFloat(numberOfViews), green: 0, blue: 0, alpha: 1)
            scrollView.addSubview(view)
        }
        
        // 设置UIPageControl的页数
        pageControl.numberOfPages = numberOfViews
    }
    
    // UIScrollView的代理方法，更新UIPageControl的currentPage
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let pageIndex = round(scrollView.contentOffset.x / scrollView.frame.width)
        pageControl.currentPage = Int(pageIndex)
    }
    
    // UIPageControl的值改变事件，滚动到相应的视图
    @IBAction func pageControlValueChanged(_ sender: UIPageControl) {
        let xOffset = scrollView.frame.width * CGFloat(sender.currentPage)
        scrollView.scrollRectToVisible(CGRect(x: xOffset, y: 0, width: scrollView.frame.width, height: scrollView.frame.height), animated: true)
    }
}