College students are not allowed to play mobile phones in class. It's best to set their mobile phones to do not disturb mode during class, let alone play with them. Using a mobile phone in class will affect the classroom rhythm of yourself and other students, delay the learning progress, and the classroom is still dominated by lectures. Prohibiting students from using mobile phones in class can improve the interactive effect of students in class and make them more attentive. College students refer to students who are or have entered universities to receive higher education. This group includes all kinds of students enrolled in colleges and universities, such as junior college students, undergraduates, master students and doctoral students. College students are a special group in society, representing the most advanced pop culture and the pillar of social progress. They have received university education, are the frontier groups of new technologies and new ideas in society, and are senior professionals trained by the state.