从Swift 3到Swift 5转换单元格删除功能

func tableView(_ tableView: UITableView, commit editingStyle: UITableViewCell.EditingStyle, forRowAt indexPath: IndexPath) {
    if editingStyle == .delete {
        // 更新数据源
        dataArray.remove(at: indexPath.row)
        
        // 从表格视图中删除单元格
        tableView.deleteRows(at: [indexPath], with: .fade)
    }
}

func tableView(_ tableView: UITableView, trailingSwipeActionsConfigurationForRowAt indexPath: IndexPath) -> UISwipeActionsConfiguration? {
    let deleteAction = UIContextualAction(style: .destructive, title: "删除") { (action, view, completionHandler) in
        // 更新数据源
        self.dataArray.remove(at: indexPath.row)
        
        // 从表格视图中删除单元格
        tableView.deleteRows(at: [indexPath], with: .fade)
        
        completionHandler(true)
    }
    
    let configuration = UISwipeActionsConfiguration(actions: [deleteAction])
    return configuration
}