在ScheduledExecutorService中测试代码

import java.util.concurrent.Executors;
import java.util.concurrent.ScheduledExecutorService;
import java.util.concurrent.TimeUnit;

public class ScheduledExecutorServiceTest {
    public static void main(String[] args) {
        // 创建一个ScheduledExecutorService实例
        ScheduledExecutorService executor = Executors.newScheduledThreadPool(1);

        // 创建一个定时任务，每隔一段时间执行一次
        Runnable task = () -> {
            // 任务逻辑代码
            System.out.println("定时任务执行了");
        };

        // 延迟1秒后开始执行任务，然后每隔3秒执行一次
        executor.scheduleAtFixedRate(task, 1, 3, TimeUnit.SECONDS);

        // 等待一段时间后关闭ScheduledExecutorService
        try {
            Thread.sleep(10000);
        } catch (InterruptedException e) {
            e.printStackTrace();
        }
        executor.shutdown();
    }
}