说明：  通过编写多进程程序实现典型的生产者和消费者问题。 ?一个大小为3的缓冲区，初始为空 ?2个生产者 –随机等待一段时间，往缓冲区添加数据， –若缓冲区已满，等待消费者取走数据后再添加 –重复6次 ?3个消费者 –随机等待一段时间，从缓冲区读取数据 –若缓冲区为空，等待生产者添加数据后再读取 –重复4次 ?显示每次添加和读取数据的时间及缓冲区的状态
(Typical producer and consumer problems can be achieved by writing multi-process programs. A buffer size of 3, initially empty 2 producers - Wait for a random period of time to add data to the buffer. - If the buffer is full, wait for the consumer to remove the data before adding it - Repeat 6 times 3 consumers - Wait for a random period of time to read data from the buffer - If the buffer is empty, wait for the producer to add data before reading it - Repeat 4 times Display the time of each addition and reading of data and the status of the buffer)