Research And Implementation Of Automatic Marking Algorithm For Subjective Programming

As we all know,the examination questions are objective and subjective questions in two forms,the objective of the automatic review has been very perfect.At present,the existing examination questions are limited to the objective questions(selection,fill in the blank),subjective programming questions are limited by the automatic review of the technical perfect,less now appear in the form of machine test.But the subjective question is a good way to examine the students of the various thinking and ability to express,so the subjective questions into the machine test is the trend,in the field of examination and education have a very important practical value.Visual Basic is one of the best programming languages for Windows programming and is suitable for beginners' programming languages.Many colleges and universities as a non-computer professional students of the first computer programming language courses,is a large computer learning courses.The goal of computer programming is to enable students to solve the problems encountered in learning and work by writing programs.Therefore,the actual programming ability assessment is very important.Traditional paper exams are more difficult to examine students' programming and debugging skills.Therefore,the need to change the form of paper from the paper to the machine test.The author of the school has been in full swing on the machine examination,marking the form or based on manual marking.Based on this purpose,the research work of this subject is carried out,and the research on the automatic reading of the program is carried out.This paper studies the dynamic link library technology(DLL),black box test method and edit distance algorithm based on the deep understanding of manual marking.Through the large number of data experiments found that the editing distance algorithm in the application of the shortcomings of the problem,for the traditional editing distance algorithm by the memory of the larger,accurate error,time-consuming and other issues.The algorithm structure based on editing distance algorithm is proposed.In this paper,the black box test method and the improved editing distance algorithm are used to simulate the artificial scoring,and the method of dynamic score and static score is used to realize and realize the requirement of automatic scoring.