On the analyzation of basic function request,the system is divided into four modules,then explains implementation method of each modules,at last gives the summarization of the work.

• 对系统基本功能要求进行分析的基础上将系统划分为四大模块,然后讲述这几个模块的实现思路和方法,最后对本文设计工作进行了总结。