life is producer-consumer design pattern code.-life

实现了生产者消费者的问题，通过调用系统函数随机产生字符对生产者消费者问题进行很好、直观的描述-Producers and consumers to realize the problem, randomly generated characters to be good producers and consumers, intuitive descr iption by calling the system function

C++生产者消费者代码实现，详细注释，挺好的适合学习-C++ producer consumer code, detailed notes, very good for learning