step1 # 修改app下的model
step2 # 将app添加的项目中 最后一行
INSTALLED_APPS = [
'django.contrib.admin',
'django.contrib.auth',
'django.contrib.contenttypes',
'django.contrib.sessions',
'django.contrib.messages',
'django.contrib.staticfiles',
'brands.apps.BrandsConfig'
]
step3 # 创建migration
python manage.py makemigrations
step4 # 将migration同步到数据库
python manage.py migrate