# 如果队列已达到最大值，则阻塞在此，直 到有人取出 product_id += 1 time.sleep(random.randint(2, 3)) def consumer_b(test_queue): while True: print('B 查看当前队列长度：', test_queue.qsize()) print(f"B multiprocessing.Process(target=producer_a, args= (test_queue,)) c = multiprocessing.Process(target=consumer_b, args= (test_queue,)) p.start() c.start() if __name__ == "__main__": main() # 如果队列已达到最大值，则阻塞在此，直 到有人取出 product_id += 1 time.sleep(random.randint(2, 3)) def consumer_b(): while True: print('B 查看当前队列长度：', test_queue.qsize()) print(f"B 取出 [{test_queue

response marketing ii. Early efforts required sending thousands of postcards/flyers and asking consumer for follow-up action (phone call, return postcard, etc.) 1. Campaigns would modify text, layouts