swift - 如何在倒计时器标签中显示毫秒？

Question

我正在创建一个游戏，您必须在 10 秒内点击尽可能多的圆圈。如果用户点击了一个圆圈，counter+=0.15毫秒，但如果错过了，counter-=0.15

timer = Timer.scheduledTimer(timeInterval: 1, target: self, selector: #selector(GameScene.updateTimer), userInfo: nil, repeats: true)

现在这是计时器函数:

func updateTimer() {
    counter-=1
    timerLabel.text = "\(counter)"
    if counter == 0 {
        timerLabel.fontColor = UIColor.red
        timerLabel.text = "TIME'S UP"
        resetGameLabel.isHidden = false
        Circle.removeFromParent()
        timer.invalidate()
    }
    if counter < 0 {
        timerLabel.fontColor = UIColor.red
        timerLabel.text = "TIME'S UP"
        resetGameLabel.isHidden = false
        Circle.removeFromParent()
        timer.invalidate()
    }
}

现在我想要在timerLabel.text上显示毫秒，我该怎么做？

Answer 1

希望这有帮助:

func currentTimeInMilliSeconds()->Int64 {
    return Int64(Date().timeIntervalSince1970 * 1000)
}

var counterInMilliSeconds = currentTimeInMilliSeconds()