根据生产者—消费者问题的相关原理，用C编程创建两组线程，分别模拟生产者和消费者，为了确保两组线程之间的同步和互斥，必须设置相关的信号量让两组线程有序的运行。-According to the producer- consumer issues related to theory, with C programming to create two threads, respectively, simulated producers and consumers, in order to ensure synchronization between the two groups of threads and the mutex must be the provision of the relevant semaphore to allow two threads running in an orderly manner.