以编程方式使用UIViews填充的UIStackView不会在UIScrollView中滚动

// 创建UIScrollView
let scrollView = UIScrollView(frame: CGRect(x: 0, y: 0, width: 200, height: 200))

// 创建UIStackView
let stackView = UIStackView(frame: CGRect(x: 0, y: 0, width: 200, height: 0))
stackView.axis = .vertical
stackView.spacing = 10

// 向UIStackView中添加视图
for i in 1...10 {
    let label = UILabel()
    label.text = "Label \(i)"
    stackView.addArrangedSubview(label)
}

// 将UIStackView添加为UIScrollView的子视图
scrollView.addSubview(stackView)

// 设置UIStackView的约束
stackView.translatesAutoresizingMaskIntoConstraints = false
stackView.leadingAnchor.constraint(equalTo: scrollView.leadingAnchor).isActive = true
stackView.trailingAnchor.constraint(equalTo: scrollView.trailingAnchor).isActive = true
stackView.topAnchor.constraint(equalTo: scrollView.topAnchor).isActive = true
stackView.bottomAnchor.constraint(equalTo: scrollView.bottomAnchor).isActive = true

// 设置UIScrollView的内容大小
scrollView.contentSize = stackView.frame.size