Pukou Campus is a platform for college students' growth, which provides online sign-in, notification and reminder, activity participation, credit statistics and other functions for college students. In the campus application of general pocket, students need to complete daily check-in tasks, and it is forbidden to sign in with screenshots, because it will affect the authenticity and effectiveness of check-in. If someone is found signing in with a screenshot, the student's sign-in score will be cancelled and the corresponding punishment will be given.