创建多个CAShapeLayers，并在其中创建唯一的触摸事件

import QuartzCore

// ...

let shapeLayer1 = CAShapeLayer()
let shapeLayer2 = CAShapeLayer()
// 创建更多的CAShapeLayers...

// 设置CAShapeLayer的属性
shapeLayer1.path = UIBezierPath(rect: CGRect(x: 0, y: 0, width: 100, height: 100)).cgPath
shapeLayer1.fillColor = UIColor.red.cgColor

shapeLayer2.path = UIBezierPath(ovalIn: CGRect(x: 0, y: 0, width: 50, height: 50)).cgPath
shapeLayer2.fillColor = UIColor.blue.cgColor

// 添加CAShapeLayer到视图的图层中
view.layer.addSublayer(shapeLayer1)
view.layer.addSublayer(shapeLayer2)

let tapGesture1 = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
shapeLayer1.addGestureRecognizer(tapGesture1)

let tapGesture2 = UITapGestureRecognizer(target: self, action: #selector(handleTap(_:)))
shapeLayer2.addGestureRecognizer(tapGesture2)

// ...

@objc func handleTap(_ gesture: UITapGestureRecognizer) {
    // 处理触摸事件
    if gesture.view == shapeLayer1 {
        // 点击了shapeLayer1
    } else if gesture.view == shapeLayer2 {
        // 点击了shapeLayer2
    }
}