如何让解开分段在同一视图控制器中的规则分段之间工作？

import UIKit

class ViewController: UIViewController, UISegmentedControlDelegate {
    var sharedData: String = ""
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        let segmentedControl = UISegmentedControl(items: ["Segment 1", "Segment 2", "Segment 3"])
        segmentedControl.addTarget(self, action: #selector(segmentedControlDidChange(_:)), for: .valueChanged)
        segmentedControl.selectedSegmentIndex = 0
        view.addSubview(segmentedControl)
    }
    
    @objc func segmentedControlDidChange(_ segmentedControl: UISegmentedControl) {
        switch segmentedControl.selectedSegmentIndex {
        case 0:
            // 执行第一个分段的操作
            sharedData = "Segment 1 selected"
            updateLabel()
        case 1:
            // 执行第二个分段的操作
            sharedData = "Segment 2 selected"
            updateLabel()
        case 2:
            // 执行第三个分段的操作
            sharedData = "Segment 3 selected"
            updateLabel()
        default:
            break
        }
    }
    
    func updateLabel() {
        // 更新其他视图或控件
        // 示例：更新一个UILabel的文本
        let label = UILabel(frame: CGRect(x: 0, y: 100, width: view.frame.width, height: 30))
        label.text = sharedData
        view.addSubview(label)
    }
}