Django练习 day04, 05, 06,07

其他 2018-08-31 20:11:15 阅读次数: 0

目录

Day04练习

    day04文件夹

    index

Day05练习

    Day04文件夹

    index

    templates

Day06练习

index

templates

Day07练习

day04文件夹

index

Day04练习

    day04文件夹

# __init__.py

import pymysql
pymysql.install_as_MySQLdb()
# settings.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'index',
]

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'webdb',
        'USER': 'root',
        'PASSWORD': '123456',
        'HOST': 'localhost',
        'PORT': '3306',
    }
}


# urls.py

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^',include('index.urls')),
]

    index

# models.py

from django.db import models

# Create your models here.
# 创建 Publisher 实体类
# 表示 出版社 的信息,属性如下:
# 1.name : 出版社的名称(varchar,string)
# 2.address : 出版社的地址
# 3.city : 出版社所在城市
# 4.country : 出版社所在国家
# 5.website : 出版社的网址
class Publisher(models.Model):
    name = models.CharField(max_length=30)
    address = models.CharField(max_length=50)
    city = models.CharField(max_length=20)
    country = models.CharField(max_length=20)
    website = models.URLField()

class Author(models.Model):
    name = models.CharField(max_length=50)
    age = models.IntegerField()
    email = models.EmailField(null=True)

    def __str__(self):
        return self.name

class Book(models.Model):
    title = models.CharField(max_length=50)
    publicate_date = models.DateField()

# urls.py

from django.conf.urls import url
from .views import *
urlpatterns = [
    # 访问路径是 /01_add , 交给 add_views 处理
    url(r'^01_add/$',add_views),
    # 访问路径是 /02_query, 交给 query_views 处理
    url(r'^02_query/$',query_views),
]
# views.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.http import HttpResponse
from django.shortcuts import render
from .models import *

# Create your views here.

# /01_add 所对应的视图


def add_views(request):
    # 向 Author 实体中增加一条数据
    # ret = Author.objects.create(name='老舍',age=85,email='[email protected]')
    # return HttpResponse(ret)

    # 使用方式2 向Author表中增加数据
    # author = Author(name='巴金',age=75,email='[email protected]')
    # ret = author.save()
    # return HttpResponse(ret)

    # 使用方式3 向Author表中增加数据
    dic = {
        'name': '冰心',
        'age': '96',
        'email': '[email protected]'
    }
    author = Author(**dic)
    author.save()
    return HttpResponse('Add OK')


def query_views(request):
    # 1. 查询 Author 实体(表)中所有的数据
    # authors = Author.objects.all()
    # # 循环便利 authors 中的每条记录
    # for au in authors:
    #     print(au.name,au.age,au.email)

    # 2. 查询 Author 实体中name和age两个列的信息
    # authors = Author.objects.values('name','age')
    # # print(authors)
    # for au in authors:
    #     print(au['name'],au['age'])

    # 3.查询 Author 实体中name和age两个列的信息
    # authors = Author.objects.values_list('name','age')
    # print(authors)

    # 4.Author表中的数据按照年龄降序排序
    authors = Author.objects.order_by('-age')
    print(authors)

    return HttpResponse('Query OK')

Day05练习

    Day04文件夹

# settings.py

INSTALLED_APPS = [
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
    'index',
]

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'webdb',
        'USER': 'root',
        'PASSWORD': '123456',
        'HOST': 'localhost',
        'PORT': '3306',
    }
}


LANGUAGE_CODE = 'zh-Hans'

TIME_ZONE = 'Asia/Shanghai'

USE_I18N = True

USE_L10N = True

USE_TZ = True






# urls.py

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^',include('index.urls')),
]

    index

# admin.py

from django.contrib import admin
from .models import *

# 定义 Author 的高级管理类
class AuthorAdmin(admin.ModelAdmin):
    #1.指定在列表页中显示的字段们
    list_display = ('name','age','email')
    #2.指定能够链接到详情页的链接们
    list_display_links = ('name','email')
    #3.指定在列表页中就允许被修改的字段们
    list_editable = ('age',)
    #4.指定允许被搜索的字段们
    search_fields = ('name','email')
    #5.指定右侧过滤器中允许筛选的字段们
    list_filter = ('name','email')
    #7.指定在详情页中显示的字段们以及顺序
    # fields = ('age','name')
    #8.指定在详情页中的字段分组
    fieldsets = (
        #分组1
        (
            "基本选项",{
                "fields":('name','age'),
            }
        ),
        #分组2
        (
            "高级选项",{
                "fields":('email','isActive'),
                "classes":("collapse",)
            }
        )
    )


class BookAdmin(admin.ModelAdmin):
    #6.增加时间选择器
    date_hierarchy = "publicate_date"


# Register your models here.
admin.site.register(Author,AuthorAdmin)
admin.site.register(Book,BookAdmin)
# models.py

from django.db import models

# Create your models here.
# 创建 Publisher 实体类
# 表示 出版社 的信息,属性如下:
# 1.name : 出版社的名称(varchar,string)
# 2.address : 出版社的地址
# 3.city : 出版社所在城市
# 4.country : 出版社所在国家
# 5.website : 出版社的网址
class Publisher(models.Model):
    name = models.CharField(max_length=30)
    address = models.CharField(max_length=50)
    city = models.CharField(max_length=20)
    country = models.CharField(max_length=20)
    website = models.URLField()

class Author(models.Model):
    name = models.CharField(max_length=50,verbose_name='姓名')
    age = models.IntegerField(verbose_name='年龄')
    email = models.EmailField(null=True,verbose_name='邮箱')
    isActive = models.BooleanField(default=True,verbose_name='激活')

    def __str__(self):
        return self.name

    class Meta:
        db_table = "author"
        verbose_name = "作者"
        verbose_name_plural = verbose_name
        ordering = ["-age","-name"]


class Book(models.Model):
    title = models.CharField(max_length=50)
    publicate_date = models.DateField()

    def __str__(self):
        return self.title

# urls.py

from django.conf.urls import url
from .views import *
urlpatterns = [
    # 访问路径是 /01_add , 交给 add_views 处理
    url(r'^01_add/$',add_views),
    # 访问路径是 /02_query, 交给 query_views 处理
    url(r'^02_query/$',query_views),
    # 访问路径是 /03_queryall,交给queryall_views处理
    url(r'^03_queryall/$',queryall_views,name='all'),
    # 访问路径是 /04_get , 交给get_views去处理
    url(r'^04_get/$',get_views),
    # 访问路径是 /05_getau/(\d+) 交给getau_views去处理
    url(r'^05_getau/(\d+)/$',getau_views,name='getau'),
    # 访问路径是 /06_filter/ 交给 filter_views
    url(r'^06_filter/$',filter_views),
    # 访问路径是 /07_email/ 交给 email_views
    url(r'^07_email/$',email_views),
    # 访问路径是 /08_delete/(\d+) 交给 delete_views
    url(r'^08_delete/(\d+)/$',delete_views,name='del'),
    # 访问路径是 /09_updateage/ 交给 updateage_views
    url(r'^09_updateage/$',updateAge_views),

]
# views.py

from django.db.models import F, Q
from django.http import HttpResponse, HttpResponseRedirect
from django.shortcuts import render, redirect
from django.urls import reverse

from .models import *

# Create your views here.

# /01_add 所对应的视图

def add_views(request):
    # 向 Author 实体中增加一条数据
    # ret = Author.objects.create(name='老舍',age=85,email='[email protected]')
    # return HttpResponse(ret)

    # 使用方式2 向Author表中增加数据
    # author = Author(name='巴金',age=75,email='[email protected]')
    # ret = author.save()
    # return HttpResponse(ret)

    # 使用方式3 向Author表中增加数据
    dic = {
        'name':'冰心',
        'age':'96',
        'email':'[email protected]'
    }
    author = Author(**dic)
    author.save()
    return HttpResponse('Add OK')


def query_views(request):
    # 1. 查询 Author 实体(表)中所有的数据
    # authors = Author.objects.all()
    # # 循环便利 authors 中的每条记录
    # for au in authors:
    #     print(au.name,au.age,au.email)

    # 2. 查询 Author 实体中name和age两个列的信息
    # authors = Author.objects.values('name','age')
    # # print(authors)
    # for au in authors:
    #     print(au['name'],au['age'])

    # 3.查询 Author 实体中name和age两个列的信息
    # authors = Author.objects.values_list('name','age')
    # print(authors)

    # 4.Author表中的数据按照年龄降序排序
    authors = Author.objects.order_by('-age')
    print(authors)





    return HttpResponse('Query OK')

def queryall_views(request):
    # 查询所有数据按年龄降序排序
    # authors = Author.objects.order_by('-age')

    # 查询所有isActive为True的数据,并按年龄降序排序
    authors = Author.objects.filter(isActive=True).order_by("-age")
    return render(request,'01_all.html',locals())


def get_views(request):
    author=Author.objects.get(name='舒庆春')
    print(author)
    return HttpResponse('Query OK')

def getau_views(request,id):
    au = Author.objects.get(id=id)
    return render(request,'02_author.html',locals())


def filter_views(request):
    # auList = Author.objects.filter(id=1,name='老舍')
    auList = Author.objects.filter(name='莫言')
    print(auList)
    return HttpResponse('Query OK')

def email_views(request):
    auList=Author.objects.filter(email__contains='a')
    for au in auList:
        print(au.name,au.age,au.email)
    return HttpResponse("Query OK")

def delete_views(request,id):
    au = Author.objects.get(id=id)
    au.isActive = False
    au.save()

    # 使用转发
    # return queryall_views(request)

    # 使用重定向
    # return HttpResponseRedirect('/03_queryall/')
    url = reverse('all')
    print(url)
    return redirect(url)

def updateAge_views(request):
   # Author.objects.all().update(age=F('age')+10)

   # 查询id=1或年龄大于100的author的信息
   auList=Author.objects.filter(Q(id=1)|Q(age__gt=100),isActive=1)
   for au in auList:
       print(au.name,au.age,au.email)
   return redirect(reverse('all'))

    templates

# 01_all.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <table border="1">
        <tr>
            <td>姓名</td>
            <td>年龄</td>
            <td>邮箱</td>
            <td>操作</td>
        </tr>
        {% for au in authors %}
            <tr>
                <td>{{ au.name }}</td>
                <td>{{ au.age }}</td>
                <td>{{ au.email }}</td>
                <td>
                    <a href="{% url 'del' au.id %}">删除</a>
                    <!-- <a href="/05_getau/{{ au.id }}/">修改</a> -->
                    <a href="{% url 'getau' au.id %}">修改</a>
                </td>
            </tr>
        {% endfor %}
    </table>
</body>
</html>
# 02_author.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form action="/" method="post">
        <p>
            姓名:
            <input type="text" name="uname" value="{{ au.name }}">
        </p>
        <p>
            年龄:
            <input type="text" name="uage" value="{{ au.age }}">
        </p>
        <p>
            邮箱:
            <input type="email" name="uemail" value="{{ au.email }}">
        </p>
        <p>
            <input type="submit" value="修改">
        </p>
    </form>
</body>
</html>

Day06练习

index

# models.py

from django.db import models

# Create your models here.
# 创建 Publisher 实体类
# 表示 出版社 的信息,属性如下:
# 1.name : 出版社的名称(varchar,string)
# 2.address : 出版社的地址
# 3.city : 出版社所在城市
# 4.country : 出版社所在国家
# 5.website : 出版社的网址
class Publisher(models.Model):
    name = models.CharField(max_length=30,verbose_name='名称')
    address = models.CharField(max_length=50,verbose_name='地址')
    city = models.CharField(max_length=20,verbose_name='城市')
    country = models.CharField(max_length=20,verbose_name='国家')
    website = models.URLField(verbose_name='网址')

    def __str__(self):
        return self.name

    class Meta:
        db_table='publisher'
        verbose_name='出版社'
        verbose_name_plural=verbose_name

class Author(models.Model):
    name = models.CharField(max_length=50,verbose_name='姓名')
    age = models.IntegerField(verbose_name='年龄')
    email = models.EmailField(null=True,verbose_name='邮箱')
    isActive = models.BooleanField(default=True,verbose_name='激活')
    # 增加对 Publisher 的多对多的引用
    publisher = models.ManyToManyField(Publisher,verbose_name='出版社')

    def __str__(self):
        return self.name

    class Meta:
        db_table = "author"
        verbose_name = "作者"
        verbose_name_plural = verbose_name
        ordering = ["-age","-name"]


class Book(models.Model):
    title = models.CharField(max_length=50)
    publicate_date = models.DateField()
    #增加对Publisher(1)的引用
    publisher = models.ForeignKey(Publisher,null=True)
    #增加对Author的引用(多对多)
    author = models.ManyToManyField(Author)

    def __str__(self):
        return self.title

    class Meta:
        db_table = "book"

# 编写Wife的实体类,与Author做:1:1的引用
class Wife(models.Model):
    name = models.CharField(max_length=30,verbose_name='姓名')
    age = models.IntegerField(verbose_name='年龄')
    #指定一对一的关联关系,引用自Author实体
    author = models.OneToOneField(Author)

    def __str__(self):
        return self.name
# views.py

# 访问路径 /10_oto/
def oto_views(request):
    # 先获取id为1的wife的信息
    wife = Wife.objects.get(id=1)
    # 再获取对应的author
    author = wife.author

    # 先获取id为2的author的信息
    a = Author.objects.get(id=2)
    # 再获取author对应的wife的信息
    w = a.wife
    return render(request, '03_oto.html', locals())

# 访问路径 /11_otm/
def otm_views(request):
    # 先查询id为1的book的信息
    book = Book.objects.get(id=1)
    # 再查询book的关联的publisher
    publisher = book.publisher

    # 先查询id为2的Publisher
    pub = Publisher.objects.get(id=2)
    # 再查询关联的所有的书籍
    bookList = pub.book_set.all()

    return render(request, '04_otm.html', locals())

# /12_mtm/
def mtm_views(request):
    # 查询id为2的book的信息
    book = Book.objects.get(id=2)
    # 查询book对应的所有的作者的信息
    authors = book.author.all()

    # 查询id为2的Author的信息
    author = Author.objects.get(id=2)
    # 查询author所对应的所有的书籍的信息
    books = author.book_set.all()

    return render(request, '05_mtm.html', locals())

# /13_exer/
def exer_views(request):
    # 正向查询:通过 Author 查询 Publisher
    author = Author.objects.get(name='老舍')
    pubList = author.publisher.all()
    print('正向查询:')
    print(author.name)
    for pub in pubList:
        print(pub.name, pub.website)
    # 反向查询:通过 Publisher 查询 Author
    pub = Publisher.objects.get(name='北京大学出版社')
    auList = pub.author_set.all()
    print('反向查询:')
    print(pub.name)
    for au in auList:
        print(au.name, au.email)

    return HttpResponse('Query OK')

templates

# 03_oto.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>正向查询(Wife -> Author)</h1>
    <h2>Wife 信息:</h2>
    <h3>姓名:{{ wife.name }}</h3>
    <h3>年龄:{{ wife.age }}</h3>
    <h2>Author 信息:</h2>
    <h3>姓名:{{ author.name }}</h3>
    <h3>姓名:{{ wife.author.name }}</h3>
    <h3>年龄:{{ author.age }}</h3>
    <h3>邮箱:{{ author.email }}</h3>
    <h1>反向查询(Author -> Wife)</h1>
    <h2>Author 信息:</h2>
    <h3>姓名:{{ a.name }}</h3>
    <h3>年龄:{{ a.age }}</h3>
    <h3>邮箱:{{ a.email }}</h3>
    <h2>Wife 信息:</h2>
    <h3>姓名:{{ w.name }}</h3>
    <h3>年龄:{{ w.age }}</h3>
</body>
</html>
# 04_otm.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>正向查询 (Book -> Publisher)</h1>
    <h2>图书信息:</h2>
    <h3>书名:{{ book.title }}</h3>
    <h3>出版时间:{{ book.publicate_date }}</h3>
    <h2>出版社信息:</h2>
    <h3>出版社:{{ publisher.name }}</h3>
    <h3>网址:
        <a href="{{ publisher.website }}">
            {{ publisher.website }}
        </a>
    </h3>
    <h1>反向查询 (Publisher -> Book)</h1>
    <h2>出版社信息:</h2>
    <h3>名称:{{ pub.name }}</h3>
    <h3>地址:{{ pub.address }}</h3>
    <h2>书籍信息:</h2>
    {% for book in bookList %}
        <h3>书名:{{ book.title }}</h3>
        <h3>出版时间:{{ book.publicate_date }}</h3>
    {% endfor %}
</body>
</html>
# 05_mtm.html

<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <h1>正向查询(Book -> Author们)</h1>
    <h2>书籍信息:</h2>
    <h3>书名:{{ book.title }}</h3>
    <h3>出版时间:{{ book.publicate_date }}</h3>
    <h2>作者们:</h2>
    {% for author in authors %}
        <h3>姓名:{{ author.name }}</h3>
        <h3>邮箱:{{ author.email }}</h3>
    {% endfor %}
    <h1>反向查询(Author -> Book们)</h1>
    <h2>作者信息:</h2>
    <h3>姓名:{{ author.name }}</h3>
    <h3>邮箱:{{ author.email }}</h3>
    <h2>书籍信息:</h2>
    {% for book in books %}
        <h3>书名:{{ book.title }}</h3>
        <h3>出版时间:{{ book.publicate_date }}</h3>
    {% endfor %}
</body>
</html>

Day07练习

day04文件夹

# __init__.py

import pymysql
pymysql.install_as_MySQLdb()


# settings.py

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.mysql',
        'NAME': 'day07',
        'USER':'root',
        'PASSWORD':'123456',
        'HOST':'localhost',
        'PORT':'3306',
    }
}

LANGUAGE_CODE = 'en-us'

TIME_ZONE = 'UTC'

USE_I18N = True

USE_L10N = True

USE_TZ = True

# urls.py

from django.conf.urls import url, include
from django.contrib import admin

urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^',include('index.urls')),
]

index

# admin.py

from django.contrib import admin
from .models import *

# Register your models here.
admin.site.register(Users)

# forms.py

# -*- coding: utf-8 -*-
from django import forms

# TOPIC'S initial display and value
TOPIC_CHOICE = (
    ('1', '好评'),
    ('2', '中评'),
    ('3', '差评'),
)

# 表示评论内容的表单控件们
# 评论标题 - 文本框
# Email - Input type='Email'
# 评论区 Message  - Textarea
# 评价 Topic - Select
# 是否保存isSave - Input type='checkbox'


class RemarkForm(forms.Form):
    # Subject - Input type="text"
    # 创建标题,label : 控件前显示的文本
    subject = forms.CharField(label='Title')
    # Email - Input type="email"
    email = forms.EmailField(label='Email')
    # Message - Textarea
    # widget=forms.Textarea , set the message is a <textarea></textarea>
    # 创建评论内容,widget指定显示为多行文本域
    message = forms.CharField(label='Message', widget=forms.Textarea)
    # 下拉选择框 topic - <select></select>
    #<select>
    # <option value='1'>好评</option>
    # <option value='2'>中评</option>
    # <option value='3'>差评</option>
    # </select>
    # 评论级别,choices指定select中显示的数据
    topic = forms.ChoiceField(label='Topic', choices=TOPIC_CHOICE)
    # ISSAVED Input type='checkbox'
    isSaved = forms.BooleanField(label="IsSaved")


# 创建class表示登录的表单
class LoginForm(forms.Form):
    # 文本框,表示用户名
    uname = forms.CharField(label='用户名称')
    # 密码框,表示用户密码
    upwd = forms.CharField(label='登录密码', widget=forms.PasswordInput)
# models.py

from django.db import models

# Create your models here.
class Users(models.Model):
    uname = models.CharField(max_length=30)
    upwd = models.CharField(max_length=30)
    uage = models.IntegerField()
    uemail = models.EmailField()

    def __str__(self):
        return self.uname
# urls.py

from django.conf.urls import url
from .views import *
urlpatterns = [
    # 访问路径是 /01_request/ 的时候,交给request_views去处理
    url(r'^01_request/$',request_views),
    # 访问路径是 /02_meta/ 的时候,交给meta_views去处理
    url(r'^02_meta/$',meta_views),
    # 访问路径是 /03_form/ 的时候,交给form_views去处理
    url(r'^03_form/$',form_views),
    # 访问路径是 /04_get/ 的时候,交给get_views去处理
    url(r'^04_get/$',get_views,name='get'),
    # 访问路径是 /05_post/ 的时候,交给post_views去处理
    url(r'^05_post/$',post_views,name='post'),
    # 访问路径是 /06_login/ 的时候,交给login_views去处理
    url(r'^06_login/$',login_views),
    # 访问路径是 /07_remark/ 的时候,交给remark_views去处理
    url(r'^07_remark/$',remark_views),
    # 访问路径是 /08_userLogin/的时候,交给userLogin_views处理
    url(r'^08_userLogin/$',userLogin_views),

]
# views.py

# -*- coding: utf-8 -*-
from __future__ import unicode_literals
from django.http import HttpResponse
from django.shortcuts import render
from .forms import *
from .models import *

# Create your views here.
def request_views(request):
    # request,类型就是 HttpRequest
    # request 封装的是所有与请求相关的内容
    # print(dir(request))

    # 协议 (方案)
    scheme = request.scheme
    # 请求主体
    body = request.body
    # 请求资源的具体路径
    path = request.path
    # 请求主机的地址 / 域名
    host = request.get_host()
    # 请求方法
    method = request.method
    # get方式请求数据
    get = request.GET
    # post方式请求数据
    post = request.POST
    # cookie 中的数据
    cookies = request.COOKIES
    # 请求的元数据
    meta = request.META
    return render(request, '01_request.html', locals())

# /02_meta/
# 通过01_request 跳转
def meta_views(request):
    if 'HTTP_REFERER' in request.META:
        print('请求源地址为:' + request.META['HTTP_REFERER'])
       # http://localhost:8000/01_request/
    return HttpResponse("Request OK")

# /03_form/
def form_views(request):
    return render(request, '02_form.html')

# /04_get/
def get_views(request):
    print(request.GET)   
    # <QueryDict: {'uname': ['tarena'], 'upwd': ['zhangsanfeng']}>
    uname = request.GET['uname']
    upwd = request.GET['upwd']
    return HttpResponse("用户名:" + uname + ",密码:" + upwd)

# /05_post/
def post_views(request):
    uname = request.POST['uname']
    upwd = request.POST['upwd']
    return HttpResponse("用户名:" + uname + ",密码:" + upwd)

# /06_login/
def login_views(request):
    if request.method == "GET":
        return render(request, '03_login.html')
    else:
        uname = request.POST['uname']
        upwd = request.POST['upwd']
        return HttpResponse('uname:' + uname + ',upwd:' + upwd)

# /07_remark/
def remark_views(request):
    form = RemarkForm()
    return render(request, '04_remark.html', locals())


# /08_userLogin/
def userLogin_views(request):
    if request.method == 'GET':
        form = LoginForm()
        return render(request, '05_login.html', locals())
    else:
        # 1.手动接收提交的数据
        # uname = request.POST['uname']
        # upwd = request.POST['upwd']

        # 2.自动接收提交的数据
        # 2.1 通过 forms.Form的构造,接收request.POST
        form = LoginForm(request.POST)
        # 2.2 is_valid()
        if form.is_valid():
            # 2.3 form.cleaned_data
            cd = form.cleaned_data
            print(cd)
            print(request.POST)
            uname = cd['uname']
            upwd = cd['upwd']
            uList = Users.objects.filter(uname=uname, upwd=upwd)
            if uList:
                return HttpResponse('登录成功')
            else:
                form = LoginForm()
                errMsg = "用户名或密码不正确"
                return render(request, '05_login.html', locals())

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