Easy to learn and cool. If you don't log in, you won't get credit. According to the query of Yi Xue Ku official website, Yi Xue Ku is an online education platform, which mainly provides online training, vocational certificates, vocational skills and other services. It is a form of educational evaluation to report for duty in Ku. Usually, people who attend the training will sign in. Students who have not signed in are generally unable to obtain corresponding credits and assessment results. Therefore, if you don't sign in during the spot check, you may not get the corresponding credits and assessment results. Usually, students who don't sign in will not take the exam or participate in the course evaluation.