从软件工程的角度描述了此系统的开发过程,从计划期的可行性研究和需求分析一直到开发期的概要设计、详细设计与编码及编码调试都进行了比较详细的介绍。-from software engineering to describe the system development process, Plan period from the feasibility study and needs analysis has been developed to outline the design phase, de