The paper expounds purpose and design thought of sales assistant system, complete the requirement analysis , system analysis and design, database design , the implementation of the functional modules.

本文详细阐述了销售辅助系统开发的目的、设计思想，完成了对该系统的需求分析、系统分析与设计、数据库设计、各功能模块的实现。

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First, this paper complete the functional requirement analysis. Then we design the diagram of hardware principle according to relevant knowledge. Finally a software be used to debug this system.

本文先完成课题的设计思路，在此基础上根据相关的知识完成硬件原理图的设计，另外还需要通过软件实现开发调试。

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