1 引言.................................................................................................................................................2
1.1 编写目的..............................................................................................................................2
1.2 背景......................................................................................................................................2
2 总体设计.........................................................................................................................................2
2.1 运行环境..............................................................................................................................2
2.2 结构 (软件框架图).............................................................................................................2
3 相关设计.........................................................................................................................................2
3.1 类框图 (必须包括 DAO 相关类框图) ..............................................................................2
3.2 通讯数据包说明（格式说明，包类别说明）..................................................................3
3.3 实现通讯相关流程图..........................................................................................................3
3.3.1 服务端开启服务时...................................................................................................3
3.3.2 服务端关闭服务时...................................................................................................3
3.3.3 客户端.......................................................................................................................3
3.4 E-R 图 ..................................................................................................................................3
