自行编制模拟程序，通过形象化的状态显示，加深理解进程的概念、进程之间的状态转换及其所带来的PCB内容 、组织的变化，理解进程与其PCB间的一一对应关系-Self compiled simulation program, through the vivid display, deepen the understanding process of the concept, process between state transitions and the PCB content, organizational change, understanding the process of its PCB one one corresponding relation