③ 更新数据
[python] view plain copy
from django.http import HttpResponsefrom TestModel.models import Testdef database(request):# 修改id=1的name字段再save，相当于SQL中的UPDATEtest = Test.objects.get(id=1)test.name='Alice'test.save()# 另一种方式# Test.objects.filter(id=1).update(name='Alice)# 修改所有的列# Test.objects.all()..update(name='google')return HttpResponse("<p>数据修改成功</p>")④ 删除数据
删除数据库中的对象只需调用该对象的delete()方法即可：
[python] view plain copy
from django.http import HttpResponsefrom TestModel.models import Testdef database(request):# 删除id=1的数据test = Test.objects.get(id=1)test.delete()# 另外一种方式# Test.objects.filter(id=1).delete()# 删除所有数据# Test.objects.all().delete()return HttpResponse("<p>数据删除成功</p>")8、Django表单
1) Get方法
① 创建一个 search.py 文件，用于接收用户的请求：
[python] view plain copy
from django.http import HttpResponsefrom django.shortcuts import render_to_response# 表单def search_form(request):return render_to_response('search_form.html')# 接收请求数据def search(request):request.encoding='utf-8'if 'q' in request.GET:message = '搜索的内容为: ' + request.GET['q'].encode('utf-8')else:message = '提交了空表单'return HttpResponse(message)② 在templates中添加 search_form.html 表单：
[html] view plain copy
<!DOCTYPE html><html><head><meta charset="utf-8"><title></title></head><body><form action="/search" method="get"><input type="text" name="q"><input type="submit" value=https://www.isolves.com/it/cxkf/yy/Python/2019-08-26/"搜索">