给定以下代码

private var myTimer: Timer? = nil

override func viewDidLoad() {
   super.viewDidLoad()
   // start my Timer
   startMyTimer()
   
   // stop timer and restart
   DispatchQueue.main.asyncAfter(deadline: .now() + .seconds(3)) {
      self.myTimer!.fire()
      print("my timer: invalidating \(Date.now.mediumTimeLocalizedDescription)")
      self.myTimer!.invalidate()
      self.myTimer = nil
      self.startMyTimer()
   }
}

private func startMyTimer() {
   myTimer = Timer.scheduledTimer(withTimeInterval: 10, repeats: true) { timer in
      print("my timer: Fired \(Date.now.mediumTimeLocalizedDescription)")
   }
   myTimer!.fire()
}

我得到了以下输出：

my timer: Fired 14:27:14
my timer: Fired 14:27:17
my timer: invalidating 14:27:17
my timer: Fired 14:27:17
my timer: Fired 14:27:27

预期产出：

my timer: Fired 14:27:14
my timer: Fired 14:27:17
my timer: invalidating 14:27:17
my timer: Fired 14:27:27

正如你所看到的，当我无效的计时器火灾的权利！
有什么办法可以防止吗？
我看了苹果的文档，上面写着“停止计时器再次启动，并请求将其从运行循环中删除”，我将其解释为“当您使计时器无效时，计时器不再启动”。我错了吗？