At present, a lot of university computer courses apply large
classes in ladder classroom, because of the quantity of teachers,
equipments and other reasons, especially in basic computer
courses. Although the teachers work very hard and prepare
very well, but the effect of teaching are still unsatisfactory.
There are many reasons for this problem [6]. Therefore, this
situation must be changed urgently. Taking full advantage of
modern teaching resources, combined with the advantages of
traditional teaching has become the request of the times.