信号SIGABTR消息

Question

有人可以帮助我，这条消息会一直提醒我。它可以列出您在一个页面注释中添加的应用程序，并在第二个页面上显示。 这是我的应用程序：

//  FirstViewController.swift
import UIKit

class FirstViewController: UIViewController, UITableViewDataSource{

    @IBOutlet var myTableView: UITableView!

    func tableView(UITableView:tableView, commitEditingStyle editingStyle:UITableViewCellEditingStyle, forRowAtIndexPath indexPath: NSIndexPath)
    {
        if editingStyle == UITableViewCellEditingStyle.delete
        {
            myItemList.removeAtIndex(indexPath.length.row)
              myTableView.reloadData()
        }
    }


    @available(iOS 2.0, *)
    internal func tableView(tableView: UITableView, numberOfRowsInSection section: Int) -> Int
    {
    return myItemList.count
    }

    @available(iOS 2.0, *)
    internal func tableView(tableView: UITableView, cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell
    {
        let myCell = UITableViewCell(style: UITableViewCellStyle.Default,reuseIdentifier: "myCell")
        myCell.textLabel?.text = myItemList[indexPath.row]
        return myCell
    }
    override func viewDidAppeeard(animated:boll){
      //  print("viewDidAppeeard")
        myTableView.reloadData()
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
            print("viewDidLoad")
    }

    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}



//  SecondViewController.swift
//  todolist
//  Created by אייל זיידמן on 16.9.2016.
//  Copyright © 2016 אייל זיידמן. All rights reserved.

import UIKit

class SecondViewController: UIViewController {
    var myItemList = [String]()

    @IBOutlet var myItemText: UITextField!
    @IBAction func addItem(sender: AnyObject) {
        if  (myItemText.text?.characters.count)! > 0
        {
            myItemList.append(myItemText.text!)
            myItemText.text = ""
            self.view.endEditing(true)
            print(myItemList)
        }

    }

    override func viewDidLoad() {
        super.viewDidLoad()
        // Do any additional setup after loading the view, typically from a nib.
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}