text: # Generated by Django 3.1.7 on 2021-04-24 06:05
  
  from django.db import migrations, models
  
  
  class Migration(migrations.Migration):
  
      dependencies = [
          ('student', '0012_grade_all_grade'),
      ]
  
      operations = [
          migrations.AddField(
              model_name='paper',
              name='passphrase',
              field=models.CharField(max_length=12, null=True, verbose_name='口令'),
          ),
          migrations.AlterField(
              model_name='question',
              name='level',
              field=models.CharField(choices=[('3', 'difficult'), ('1', 'easy'), ('2', 'general')], max_length=10, verbose_name='等级'),
          ),
      ]
  