我正在尝试使用滑动删除功能来删除tableview单元格。除了只剩下1个单元格时，它工作正常。如果我删除最后一个单元格，我会得到标题错误消息。这里出了什么问题？这似乎是一个内部逻辑错误，但我在删除行之前从数组中删除了项，所以行不应该反映这一点吗？提前感谢！
以下是一些设置：

private var resultArray: [SavedResult] = []

private var decodedData = [SavedResult]()

@IBOutlet weak var resultsTableView: UITableView!

var resultLabel = "none"

override func viewDidLoad() {
    super.viewDidLoad()
    
    self.resultsTableView.delegate = self
    resultsTableView.dataSource = self
    resultsTableView.rowHeight = 80.0
    loadCellName()
    
}

func loadCellName() {
    
    resultArray = []
    
    
    if let data = try? Data(contentsOf: filePath!) {
     
    let decoder = PropertyListDecoder()
    do {
        decodedData = try decoder.decode([SavedResult].self, from: data)
    } catch {
        print("There was an error loading data: \(error)")
    }
    }
    resultArray = decodedData
    self.resultsTableView.reloadData()
}

下面是我所有tableview/数据源/swipe内容：

extension SavedViewController: UITableViewDataSource {
    
    func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {
        
        if resultArray.count == 0 {
            
            return 1
        } else {
        return resultArray.count
        }
    }
    
    func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {

        let cell = resultsTableView.dequeueReusableCell(withIdentifier: "ResultCell", for: indexPath) as! SwipeTableViewCell
        
        cell.delegate = self
        
        if resultArray.count == 0 {

            cell.textLabel?.text = "No Saved Results Yet."
            cell.textLabel?.attributedText = NSAttributedString(string: (cell.textLabel?.text)!, attributes: [NSAttributedString.Key.font : UIFont(name: "Caveat", size: 30.0)])
            cell.backgroundColor = blueCell
            cell.accessoryType = .none
            cell.isUserInteractionEnabled = false
            return cell
        } else {
            
            cell.textLabel?.text = resultArray[indexPath.row].name
            
            cell.textLabel?.attributedText = NSAttributedString(string: (cell.textLabel?.text)!, attributes: [NSAttributedString.Key.font : UIFont(name: "Caveat", size: 30.0)])
            
            
            switch indexPath.row {
            case 0, 3, 6, 9, 12, 15, 18, 21, 24, 27:
                cell.backgroundColor = blueCell
            case 1, 4, 7, 10, 13, 16, 19, 22, 25:
                cell.backgroundColor = yellowCell
                case 2, 5, 8, 11, 14, 17, 20, 23:
                cell.backgroundColor = purpleCell
            default:
                fatalError("cell background colour setting failed.")
            }
            
            
            return cell
        }
        
    }

}

extension SavedViewController: UITableViewDelegate {
    
    func tableView(_ tableView: UITableView, didSelectRowAt indexPath: IndexPath) {
        
        resultLabel = resultArray[indexPath.row].resultMessage
        resultsTableView.deselectRow(at: indexPath, animated: true)
        self.performSegue(withIdentifier: "savedExamSeg", sender: self)
}
}
   
extension SavedViewController: SwipeTableViewCellDelegate {
    
   
    func tableView(_ tableView: UITableView, editActionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> [SwipeAction]? {
        
        guard orientation == .right else { return nil }
        let deleteAction = SwipeAction(style: .destructive, title: "Delete") { action, indexPath in
                
                self.resultArray.remove(at: indexPath.row)

                let encoder = PropertyListEncoder()
                do {
                    
                    let data = try encoder.encode(self.resultArray)
                    try data.write(to: self.filePath!)
                } catch {
                    
                    print("There was an error saving data: \(error)")
                }
            
            }
        
        
        deleteAction.image = UIImage(named: "deleteIcon")
 
        return [deleteAction]
    }
    
    func tableView(_ tableView: UITableView, editActionsOptionsForRowAt indexPath: IndexPath, for orientation: SwipeActionsOrientation) -> SwipeOptions {
        
        var options = SwipeTableOptions()
        options.expansionStyle = .destructive
        return options
    }