问题描述
时的执行委托的方式或事件在C＃中的时候秒，分钟，小时，。 ..更改系统时钟，而不使用，检查每毫秒如果属性已经改变，执行与最大毫秒的延迟事件的计时器。
Is their a way to execute a delegate or event in C# when the seconds, minutes, hours,... change in the system-clock, without using a timer that checks every millisecond if the property has changed and executes the event with a delay of maximum a millisecond.
我因此，要避免的查询的和火在特定时间的事件。
I thus want to avoid polling and fire an event at a certain time.
推荐答案
如果你的问题是我如何执行代表每整秒/分钟/小时？
有关分钟和小时的时间间隔，你可以这样做在回答这个问题的SO所示：
For minute and hour intervals, you could do something like shown in my answer in this SO question:
- 的
- How to generate event on a specific time of clock in C#?
这应该是相当准确的，但不会是精确到毫秒。
This should be fairly accurate, but won't be exact to the millisecond.
有关第二间隔时间，我会去一个定时器用一个简单的1秒间隔。从用户的角度来看，我认为，如果操作执行在XX有没有很大的差异：XX：xx.000或XX：XX：xx.350
For second intervals, I'd go with a Timer with a simple 1-second-interval. From a user's perspective I think there's not a lot of difference if the action executes at xx:xx:xx.000 or at xx:xx:xx.350.
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