无法将领域数据从tableViewController传递到viewController

// 定义一个协议
protocol DataTransferDelegate: AnyObject {
    func didTransferData(data: Any)
}

class TableViewController: UITableViewController, DataTransferDelegate {
    var data: [String] = ["Item 1", "Item 2", "Item 3"]
    
    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let selectedData = data[indexPath.row]
        let destinationVC = ViewController()
        destinationVC.delegate = self
        navigationController?.pushViewController(destinationVC, animated: true)
        delegate?.didTransferData(data: selectedData)
    }
}

class ViewController: UIViewController {
    weak var delegate: DataTransferDelegate?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        if let data = delegate?.didTransferData(data: nil) {
            print("Received data: \(data)")
        }
    }
}

class TableViewController: UITableViewController {
    var data: [String] = ["Item 1", "Item 2", "Item 3"]
    var dataTransferCompletion: ((Any) -> Void)?
    
    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let selectedData = data[indexPath.row]
        let destinationVC = ViewController()
        destinationVC.dataTransferCompletion = { [weak self] data in
            self?.dataTransferCompletion?(data)
        }
        navigationController?.pushViewController(destinationVC, animated: true)
        dataTransferCompletion?(selectedData)
    }
}

class ViewController: UIViewController {
    var dataTransferCompletion: ((Any) -> Void)?
    
    override func viewDidLoad() {
        super.viewDidLoad()
        if let completion = dataTransferCompletion {
            completion("Received data")
        }
    }
}

class TableViewController: UITableViewController {
    var data: [String] = ["Item 1", "Item 2", "Item 3"]
    
    override func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        let selectedData = data[indexPath.row]
        let destinationVC = ViewController(data: selectedData)
        navigationController?.pushViewController(destinationVC, animated: true)
    }
}

class ViewController: UIViewController {
    var receivedData: Any?
    
    init(data: Any) {
        self.receivedData = data
        super.init(nibName: nil, bundle: nil)
    }
    
    required init?(coder: NSCoder) {
        fatalError("init(coder:) has not been implemented")
    }
    
    override func viewDidLoad() {
        super.viewDidLoad()
        print("Received data: \(receivedData ?? "")")
    }
}