校园卡系统设计方案，关于现行系统介绍、新系统目标确定、系统业务流程图分析、系统数据流程图分析、数据库E-R图，数据表结构/数据字典确定,-The design of campus card system, introduced on the existing system and the new system targeting system business process diagrams, flow chart of the system data analysis, database ER diagrams, data table structure/data dictionary to determine