1，添加模型

from django.db import models

class Post(models.Model):
    title = models.CharField(max_length=200)
    content = models.TextField()
    pub_date = models.DateTimeField('date published')




class Book(models.Model):
    title = models.CharField(max_length=100)
    author = models.CharField(max_length=100)
    publication_date = models.DateField()
    price = models.DecimalField(max_digits=5, decimal_places=2)

    def __str__(self):
        return self.title

2，添加视图函数

Test/app11/views.py

from django.http import HttpResponse
from app11.models import Book  # 导入你的模型

def delete_book1(request):
    one_data = Book.objects.get(id=21)
    one_data.delete()

    return HttpResponse("id为18的数据删除成功！")

3，添加路由地址

Test/app11/urls.py

from django.urls import path
from . import views

urlpatterns = [
 

    path('delete_book1/', views.delete_book1, name='delete_book1'),
]

4，访问页面

127.0.0.1:8000/app11/delete_book1/