目录第一章 前言.....................................................................................................................................21.1 选题背景及目的...............................................................................................................21.2 国内外讨论状况...............................................................................................................31.3 设计和解决方法...............................................................................................................3第二章 需求分析.............................................................................................................................52.1 范围...................................................................................................................................52.1.1 系统概述...............................................................................................................52.1.3 文档概述...............................................................................................................52.2 需求概述...........................................................................................................................52.2.1 系统目标...............................................................................................................52.2.2 运行环境...............................................................................................................62.2.3 用户的特点...........................................................................................................62.3 功能需求............................................................................................................................62.4.1 系统用例图...........................................................................................................72.4.2 系统各项功能描述...............................................................................................82.5 数据.............
