public void run() { for (int i = 0; i < 1000; i++) { count++; atomicInteger.getAndIncrement(); } latch.countDown(); // 当前线程调用此方法,则计数减一 } }; //同时启动多个线程 for (int i = 0; i < MAX_TREAD; i++) { new Thread(runnable).start(); } latch.await(); //...