operación de consulta de python orm

views.py

from django.shortcuts import render,HttpResponse
# Create your views here.
from .models import *
def getfrom(request):
    book = Book.objects.get(id=1)
    m = book.id
    return HttpResponse(m)

urls.py

from django.contrib import admin
from django.urls import path
from item0 import views
urlpatterns = [
    path('admin/', admin.site.urls),
    path('getfrom/',views.getfrom)
]

models.py

from django.db import models

# Create your models here.

class Book(models.Model):
    m = models.IntegerField(null= True)
    name = models.CharField(null= True,max_length=20)

---

终端测试操作
python manage.py shell   进入sql命令
from  item0.models import *
 book = Book(id=1,m=2,name="m")
 book.save()
 Book.objects.all()
		Out[6]: <QuerySet [<Book: Book object (1)>]>
 book = Book.objects.get(id=1)
 book.id
 book.name

https://blog.csdn.net/yanpenggong/article/details/82316514