作者对市面上出现的一些考试进行了研究,分析了当前考试系统的现状,简要介绍了开放式无纸化考试系统的题库系统的设计。该系统的编辑语言选用的是Visual Basic 6.0,数据库由Access2000建立。该系统其中包括四个子库:试题库、试卷库、学科知识结构库以及考生信息库。然后分别介绍了考试系统六大模块的开发:组卷模块、发布模块、考试管理模块、阅卷模块、统计分析模块和成绩发还模块。其中,着重介绍了考试管理模块模块的设计思想和实现的关键技术。该模块允许考生在输入合法的身份信息后,选择了相应的科目及试卷类型后进入考试窗体,考试时间到,系统强制考生退出,并自动评卷计分、存档。 This paper discusses the realization of the serial communication on PC and industry control computer by means of writing procedure code, using MSComm Control, loading DLL and setting compiling code with visual OOP computer languages such as Visual Basic , Visual Foxpro and Access2000. This paper is written with Visual Basic. The text is mainly described the part of the examined control system..In this part,student should put into the correct information at first.Then he will be allowed to get into the system. When time is over, students was forced to out the system and the system will grade the examination paper . |
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