one, producer

代码说明：

1、 生产者―消费者问题是一种同步问题的抽象描述。 2、 计算机系统中的每个进程都可以消费或生产某类资源。当系统中某一进程使用某一资源时，可以看作是消耗，且该进程称为消费者。 3、 而当某个进程释放资源时，则它就相当一个生产者 -one, producer-consumer problem is a problem of synchronization of the abstract description. 2, the computer systems of each process can consumption or production of certain resources. When a process system using a resource, can be seen as expendable, and the process known as consumers. 3, and when a process to release resources, then it is a producer