通过实现经典的读者写者问题，巩固对线程及其同步机制的学习效果，加深对相关基本概念的理解，并学习如何将基本原理和实际设计有机的结合-Through the realization of the classical problem of the readers to write, to consolidate on the threads and synchronization mechanisms of learning and deepen the understanding of basic concepts related to understanding, and learn how to design the basic principles and practical combination of organic