public BaseDecorator(AbstractStudent student) { _student = student; id = student.id; name = student.name; }
public StuDecoratorHomework(AbstractStudent student) : base(student) { }
public StuDecoratorAnswer(AbstractStudent student) : base(student) { }
public StuDecoratorPreview(AbstractStudent student) : base(student) { }
public StuDecoratorVideo(AbstractStudent student) : base(student) { }
public StuDecoratorPrepare(AbstractStudent student) : base(student) { }