请编写一个程序,有1生产者线程和5消费者线程,

生产者生产n(0 < n < = 5)产品的时间,

每个消费者消费产品每次只有一个,

只有当产品都被消费,生产者可以生产下一批产品-Please write a program, there is a producer thread and a consumer thread 5, producers produce n (0 < n < = 5) the product of the time, every consumer consumer products only one, only when products are consumed, Producers can produce the next batch of products