说明：  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 说明： 显示每次添加和读取数据的时间及缓冲区的状态 生产者和消费者用进程模拟。
(A buffer of size 3, is initially empty Two producers                           - Wait for a random time, to add the data in the buffer,                           - If the buffer is full, and then wait for the consumers to get data added                           - Repeat 6 times 3 consumers                           - Wait for a random time, read data from the buffer                           - If the buffer is empty, waiting for producers to add data can then be read                           - Repeated four times Description: Displayed every time you add and read data time and buffer status Producers and consumers with process simulation.)