目录摘要·································································································5前言··································································································5第1章系统概述····················································································61
1设计的目的····················································································61
2本系统设计的目的···········································································6第2章需求分析与设计原则·····································································72
1需求分析·······················································································72
2功能需求·······················································································72
1功能划分············································