文件名称:train
介绍说明－－下载内容均来自于网络，请自行研究使用
此为火车票预售系统，内容详细，含有数据流图等多个系统图。-This is the ticket pre-sale system, detailed and contains a data flow diagram such as Figure multiple systems.
(系统自动生成,下载前可以参看下载内容)
下载文件列表
火车票预售系统
..............\E-R图.vsd
..............\leiyulu.doc
..............\任务书.doc
..............\关联图.vsd
..............\数据流图.vsd
..............\用例图.vsd
..............\E-R图.vsd
..............\leiyulu.doc
..............\任务书.doc
..............\关联图.vsd
..............\数据流图.vsd
..............\用例图.vsd