At present, punching cards is to report the local health situation every morning and evening, in order to prevent college students from getting up too lazy in the morning and going out at will without complying with the requirements of epidemic prevention and control.

There are also online class attendance and punching, such as nailing, Tencent meeting, and online class punching. If you don't punch in, the teacher will record in the background, so that the teacher can confirm the number of students in class, supervise the students to attend classes in time and avoid skipping classes.

Counselors also need to determine whether you are safe, so they usually set up a punch card during the long vacation, which is convenient for counselors to determine whether you are in a safe environment.

There are also special software for teachers, such as memorizing English words and punching cards. Students recite words and punch cards every day to urge students to study.