如何使用UIPageControl创建多个视图？

let pageControl = UIPageControl(frame: CGRect(x: 0, y: view.bounds.height - 50, width: view.bounds.width, height: 50))
pageControl.numberOfPages = 5 // 设置总页数
pageControl.currentPage = 0 // 设置当前页面
pageControl.tintColor = .systemBlue // 设置选中颜色
pageControl.pageIndicatorTintColor = .systemGray // 设置未选中颜色
view.addSubview(pageControl)

let scrollView = UIScrollView(frame: view.bounds)
scrollView.contentSize = CGSize(width: view.bounds.width * 5, height: view.bounds.height) // 设置滚动视图的内容宽度
scrollView.isPagingEnabled = true // 设置分页效果
scrollView.showsHorizontalScrollIndicator = false // 隐藏滚动条
view.addSubview(scrollView)

for i in 0..<5 {
    let subView = UIView(frame: CGRect(x: view.bounds.width * CGFloat(i), y: 0, width: view.bounds.width, height: view.bounds.height))
    subView.backgroundColor = .systemYellow
    scrollView.addSubview(subView)
}

scrollView.delegate = self

extension ViewController: UIScrollViewDelegate {
    func scrollViewDidScroll(_ scrollView: UIScrollView) {
        let pageIndex = Int(scrollView.contentOffset.x / scrollView.bounds.width)
        pageControl.currentPage = pageIndex
    }
}