swift3.0中带arc4random的IBOutlet

我有密码

class ViewController: UIViewController {

var detailText: String = "Chance of win is 50%"

@IBOutlet weak var winChance: UILabel!

func someMethod () -> Void {
    print("Method called!")
}

override func viewDidLoad() {
    super.viewDidLoad()
self.winChance.text = self.detailText
}    }

如何使arc4random达到50%？？ 如果我使用带有“（var）”的东西，它对我没有帮助 Thnx

试试这个

class ViewController: UIViewController {

    @IBOutlet weak var winChance: UILabel!

    func someMethod () -> Void {
        print("Method called!")
    }

    override func viewDidLoad() {
        super.viewDidLoad()
        let randomNumber = Int(arc4random_uniform(100))
        self.winChance.text = "Chance of win is \(randomNumber)%"
    }    
}

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您希望标签文本为

获胜的几率为“randomnubmer”

？是。。。。。。。。。。。。