Ask the teacher or the administrative office.

1. Before the Xi'an Conservatory of Music's 2022 undergraduate exams, the school will inform students of the candidate number in advance. Only the correct candidate number will be valid. The school will issue the candidate number to the teacher and pass it on to the students, so you can ask the teacher.

2. If the teacher is not available, you can ask the Academic Affairs Office, because the Academic Affairs Office is the department that stores student information and must have the student number of each student.