高校大学计算机通识类实验课堂由于学生人数较多，全面有效的考勤工作不但占用大量实验辅导时间而且较 难进行，使得许多学生的问题不能在课堂中得到及时的解答，影响教学效果。笔者通过自主研发软件使得实验室中每台计算 机具有了考勤机的功能，相当于安装了一台“虚拟考勤机”。通过该软件能准确记载每位学生的到课和离课时间并能在课后生 成一张详细的考勤记录表，使辅导教师能有大量的时间进行学生的答疑工作，也对学生有较强的约束力，间接的促进了教学工 作，提高了教学效果。

Because of the large amount of students in the college computer general kinds of experimental class , it is hard to take a overall effective check on work attendance and will occupy much tutoring time, which will make many students' problems not get timely answer, influence the teaching effect. The author designs software to make each computer of the laboratory have a roll machine function, which is equivalent to install a virtual roll machine. We can accurately record the time for each student to come to the class and leave from the class, and form a detailed work attendance record. The software promotes the teaching indirectly and improves the teaching effect.