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