如何在iOS ScrollView中获取圆形图像？

// 创建UIImageView并加载图像
let imageView = UIImageView(image: UIImage(named: "image.jpg"))

// 设置UIImageView的frame
imageView.frame = CGRect(x: 0, y: 0, width: 200, height: 200)

// 创建CAShapeLayer并设置圆形路径
let maskLayer = CAShapeLayer()
maskLayer.path = UIBezierPath(ovalIn: imageView.bounds).cgPath

// 将CAShapeLayer设置为UIImageView的mask
imageView.layer.mask = maskLayer

// 将UIImageView添加到UIScrollView中
scrollView.addSubview(imageView)