The timer is not periodic; you set it when the timer event is triggered, and then the event is removed from the event queue.
计时器不是周期性的；当触发计时器事件时设置它，然后从事件队列中删除事件。
A Timer provides for delayed or periodic execution of work.
Timer 负责延迟工作或定期工作的执行。
In this example, the periodic basis is just a timer that goes off at a regular, configurable, interval.
在这个示例中，周期基础只是一个计时器，该计时器按照规律的、配置好的间隔到期。
In this example, the periodic basis is just a timer that goes off at a regular, configurable, interval.
在这个示例中，周期基础只是一个计时器，该计时器按照规律的、配置好的间隔到期。
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