Django 更新数据 save()方法

1，添加模型

Test/app11/models.py 

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 updata_book(request):
    # 假设我们要更新标题为 "My Book Title" 的书籍的作者和价格
    book = Book.objects.get()  # 获取该书籍实例
    # 更新书籍的作者和价格
    book.author = "小红"
    book.price = 88.88
    # 保存更改
    book.save()
    return HttpResponse("Book updata successfully!")

3，路由地址

Test/app11/urls.py

from django.urls import path
from . import views
urlpatterns = [
 
    path('updata_book/', views.updata_book, name='updata_book'),
]

4，访问页面

http://127.0.0.1:8000/app11/updata_book/