from django.contrib import admin
from django.urls import path

urlpatterns = [
    path('admin/', admin.site.urls),
]

python manage.py startapp cmdb     #cmdb为app名

from django.db import models
class UserType(models.Model):
    name = models.CharField(max_length=32)
class UserInfo(models.Model):
    username = models.CharField(max_length=32)
    passwd = models.CharField(max_length=32)
    email = models.EmailField(db_index=True)
    user_type = models.ForeignKey(UserType,on_delete=models.CASCADE)  #有外键时要注意on_delete的使用

#在终端上依次输入如下代码：
python manage.py makemigrations

python manage.py migrate

python manage.py createsuperuser

from django.contrib import admin

from cmdb import models
admin.site.register(models.UserType)
admin.site.register(models.UserInfo)

python manage.py runserver