使用Segue将数据传递到不同的视图控制器的问题

// 源视图控制器
class SourceViewController: UIViewController {
    // 数据
    var data: String = "Hello, World!"
    
    // 点击按钮触发Segue
    @IBAction func buttonTapped(_ sender: UIButton) {
        performSegue(withIdentifier: "showDestination", sender: self)
    }
    
    // 准备Segue传递数据
    override func prepare(for segue: UIStoryboardSegue, sender: Any?) {
        if segue.identifier == "showDestination" {
            if let destinationVC = segue.destination as? DestinationViewController {
                destinationVC.receivedData = data
            }
        }
    }
}

// 目标视图控制器
class DestinationViewController: UIViewController {
    // 接收数据
    var receivedData: String?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        
        if let data = receivedData {
            print(data) // 输出：Hello, World!
        }
    }
}