说明：  多线程和多进程的管理与调度实验，C语言实现。 此次实验创建了多个线程和进程，使我们加深了对进程概念的理解，明确了进程与线程的区别,掌握了Linux进程创建和撤销的方法，进一步认识了并发执行的实质，了解了多线程的程序设计方法。
(Multithreading and multi-process scheduling and management of the experiment, the C language implementation. The experiments created multiple threads and processes, so that we deepen the understanding of the concept of process, has been clear about the difference between processes and threads, mastered the Linux process creation and removal methods, further understanding the essence of concurrent execution, understand the multithreaded programming method.)