swift-tableView 删除行

import UIKit

class FirstViewController: UIViewController {

    @IBOutlet weak var tableView: UITableView!
    
    let cellIdentified = "cell"
    var numbers = ["One","Two","Three","Foure","Five","Six","Seven","Eight","Nine","Ten"];
    
    override func viewDidLoad() {
        super.viewDidLoad()

        // 准备UI
        prepareUI()
        // Do any additional setup after loading the view.
    }

   private func prepareUI() {
    
        navigationItem.title = "首页"
    
        tableView.delegate = self
        tableView.dataSource = self
    
        tableView.registerClass(UITableViewCell.self,forCellReuseIdentifier: cellIdentified)
    
    
    
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // dispose of any resources that can be recreated.
    }
    
    func tableView(tableView: UITableView,commitEditingStyle editingStyle: UITableViewCellEditingStyle,forRowAtIndexPath indexPath: NSIndexPath) {
        if editingStyle == UITableViewCellEditingStyle.Delete {
            numbers.removeAtIndex(indexPath.row)
            tableView.deleteRowsAtIndexPaths([indexPath],withRowAnimation: UITableViewRowAnimation.Automatic)
        }
    }

    /*
    // MARK: - Navigation

    // In a storyboard-based application,you will often want to do a little preparation before navigation
    override func prepareForSegue(segue: UIStoryboardSegue,sender: AnyObject?) {
        // Get the new view controller using segue.destinationViewController.
        // Pass the selected object to the new view controller.
    }
    */
    

}

extension FirstViewController:UITableViewDelegate,UITableViewDataSource {
    
    func tableView(tableView: UITableView,cellForRowAtIndexPath indexPath: NSIndexPath) -> UITableViewCell {
        
        let cell = tableView.dequeueReusableCellWithIdentifier(cellIdentified,forIndexPath: indexPath) 
        cell.textLabel?.text = numbers[indexPath.row]
        return cell
    }
    
    func tableView(tableView: UITableView,numberOfRowsInSection section: Int) -> Int {
        return numbers.count
    }
    
}