线程池执行for循环

ScheduledExecutorService pool = new ScheduledThreadPoolExecutor(10,new BasicThreadFactory.Builder().namingPattern("example-schedule-pool-%d").daemon(true).build());
CountDownLatch cdl = new CountDownLatch(list.size());
for (int i = 0; i < list.size(); i++) {
    final int j = i;
    Runnable run = new Runnable() {
        @SneakyThrows
        @Override
        public void run() {
            if (需要跳出) {
                //计数器递减 退出
                cdl.countDown();
                return;
            }
            //主业务
            System.out.println();
            //计数器递减
            cdl.countDown();
        }
    };
    //执行线程
    pool.execute(run);
}
//线程执行完后再执行主线程
cdl.await();
//继续跑主线程
System.out.println();