iOS swift在uiScrollview中添加uiScrollview控制器

// 父UIViewController
class ParentViewController: UIViewController {
    var scrollView: UIScrollView!
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 创建UIScrollView实例
        scrollView = UIScrollView(frame: view.bounds)
        scrollView.contentSize = CGSize(width: view.bounds.width, height: view.bounds.height * 2)
        view.addSubview(scrollView)
        
        // 创建ChildViewController实例
        let childViewController = ChildViewController()
        
        // 将ChildViewController添加为父控制器的子控制器
        addChildViewController(childViewController)
        
        // 将ChildViewController的view添加到UIScrollView的contentView中
        scrollView.addSubview(childViewController.view)
        
        // 调用ChildViewController的didMove(toParentViewController:)方法
        childViewController.didMove(toParentViewController: self)
    }
}

// 子UIViewController
class ChildViewController: UIViewController {
    override func viewDidLoad() {
        super.viewDidLoad()
        
        // 在这里可以定义和实现需要展示的内容和功能
        let label = UILabel(frame: CGRect(x: 0, y: 0, width: view.bounds.width, height: 100))
        label.text = "Hello, World!"
        label.textAlignment = .center
        view.addSubview(label)
    }
}