According to the reasons why you don't report for duty, it can be divided into the following situations:
1. I'm injured and can't report.
In this case, you can apply to the school for an extension of registration, just need parents to provide the school with proof of hospitalization.
Second, I went to repeat.
This situation is recorded in the credit file. I suggest that you call the school that admitted you before you enter the university or when you file, explaining that you have to repeat, give up the admission quota and let them withdraw your file. If it is too late to return, you can only enter the credit file. When you re-read in the second year, you will see your dishonesty in the application information, which will restrict you from volunteering to fill in the report. After being confused, some schools will still give priority to new graduates, and they will also consult when filling out their volunteers in the future.
Third, I don't want to go to college or repeat my studies.
It doesn't matter if you don't go, but you still have to tell the school. After all, it wasted an enrollment quota.