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[拼写错误] java线程池学习总结.md
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docs/java/multi-thread/java线程池学习总结.md
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@ -834,7 +834,7 @@ Wed Nov 13 13:40:43 CST 2019::pool-1-thread-5
**`ScheduledThreadPoolExecutor` 的执行主要分为两大部分：**
1. 当调用 `ScheduledThreadPoolExecutor` 的 **`scheduleAtFixedRate()`** 方法或者**`scheduleWirhFixedDelay()`** 方法时，会向 `ScheduledThreadPoolExecutor` 的 **`DelayQueue`** 添加一个实现了 **`RunnableScheduledFuture`** 接口的 **`ScheduledFutureTask`** 。
1. 当调用 `ScheduledThreadPoolExecutor` 的 **`scheduleAtFixedRate()`** 方法或者 **`scheduleWithFixedDelay()`** 方法时，会向 `ScheduledThreadPoolExecutor` 的 **`DelayQueue`** 添加一个实现了 **`RunnableScheduledFuture`** 接口的 **`ScheduledFutureTask`** 。
2. 线程池中的线程从 `DelayQueue` 中获取 `ScheduledFutureTask`，然后执行任务。
**`ScheduledThreadPoolExecutor` 为了实现周期性的执行任务，对 `ThreadPoolExecutor`做了如下修改：**