ios - Swift 将浮点值添加到 UISlider.value

Question

import UIKit

class ViewController: UIViewController {

    // Khai bao bien
    var time:Float = 0
    var timer:NSTimer!
    var sliTime:Float!

    // End khai bao
    @IBOutlet weak var sldTime: UISlider!
    @IBOutlet weak var lblScore: UILabel!
    @IBOutlet weak var lblNum1: UILabel!
    @IBOutlet weak var lblOperator: UILabel!
    @IBOutlet weak var lblNum2: UILabel!
    @IBOutlet weak var lblResult: UILabel!
    @IBAction func btnOK(sender: AnyObject) {
    }
    @IBAction func btnCan(sender: AnyObject) {
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        sldTime.minimumValue = 0
        sldTime.maximumValue = 10
        timer = NSTimer.scheduledTimerWithTimeInterval(1, target: self, selector: Selector("Run") ,userInfo: nil, repeats: true)
    }

    func Run()
    {
        if time == 0{
            time = 10
        }else{
            time = time - 1
            sldTime.value = time
        }
    }
    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }
}

当我在模拟器中运行应用程序时，应用程序显示:

"Thread 1 breakpoint 1.1" in line sldTime.value = time

Answer 1

调试器控制台说什么？线程 1:如果控制台显示的是 SIGABRT 错误信号，这意味着您从 Main Story 板到 ViewController 的连接有问题，请转至 Outlet Connection > 并删除您建立的但不再使用的连接。并尝试再次运行它。请记住，Thread 1: signal SIGABRT Error 主要是由于 Storyboard 和 ViewController 之间的连接问题造成的。

time = sldTime.floatValue