3.2.2 技术阐明.................................................................................................................................................12
3.3 系统功能及模块............................................................................................................................................13
3.3 系统用例及阐明 ............................................................................................................................................14
3.3.1 前台用例图 .............................................................................................................................................14
3.3.2 前台用例阐明.........................................................................................................................................14
3.3.3 后台用例图 .............................................................................................................................................20
3.3.4 后台用例阐明.........................................................................................................................................20
4．系统设计................................................................................................................................................26
4.1 系统构架 .........................................................................................................................................................26
4.1.1 系统功能模块........................................................................................................................................26
4.2 数据库设计.....................................................................................................................................................27
4.2.1 逻辑设计.................................................................................................................................................27
4.2.1.1 实体 .....................................................................................................................................................................27
4.2.1.2 实体关系模型...................................................................................................................................................30
4.2.2 物理设计.................................................................................................................................................30
4.2.2.1 表设计.................................................................................................................................................................30
4.3 系统类设计.....................................................................................................................................................35
4.3.1 系统文献夹构造...................................................................................................................................35
1 一级文献夹..................................................................................................................................................................35
2 二级文献夹..................................................................................................................................................................35
4.3.2 定义核心启动类...................................................................................................................................37
1 核心启动类：Framework.class.php.....................................................................................................................37
2 定义基本控制器类....................................................................................................................................................38
3 定义基本模型类.........................................................................................................................................................39
4.3.3 定义工具类 ............................................................................................................................................39
