• 　　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, initially empty •　2 x producers- random wait time, add data to the buffer,- if the buffer is full, waiting for consumers to get data and then add- repeated six times •　3 Consumer- random wait some time to read data from the buffer- if the buffer is empty, add data and then wait for the producer to read- repeated four times Descr iption: •　Display and read the data every time you add a time and buffer status •　producers and consumers to use process simulation.