ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor();

ScheduledExecutorService executor = Executors.newSingleThreadScheduledExecutor(); 是创建一个只有一个线程的定时任务执行器。 这个执行器使用了Executors类的newSingleThreadScheduledExecutor()方法来创建。这个方法返回一个ScheduledExecutorService对象，它可以用来执行定时任务。这个执行器只会创建一个线程来执行任务，所以任务之间不会并发执行。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
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