from django.contrib import admin from django.urls import path, re_path from . import viewsurlpatterns = [#http://127.0.0.1:8000/整数2位/操作符/整数2位注意，如果把此行代码放在下面，会被path('//', views.cal_view),行取代，不会执行 re_path(r'^(?P\d{1,2})/(?P\w+)/(?P\d{1,2})$', views.cal2_view), #http://127.0.0.1:8000/整数/操作符/整数 path('//', views.cal_view),#http://127.0.0.1:8000/birthday/年4/月2/日2 re_path(r'^birthday/(?P\d{4})/(?P\d{1,2})/(?P\d{1,2})$', views.birthday_view), #http://127.0.0.1:8000/birthday/月2/日2/年4 re_path(r'^birthday/(?P\d{1,2})/(?P\d{1,2})/(?P\d{4})$', views.birthday_view) ]

from django.http import HttpResponse# 思考：建立如上一百、一千、一万个网页该怎么办？ # http://127.0.0.1:8000/page/3-100 def pagen_view(request,pg): html = "这是编号为%s的网页!!!"%(pg) return HttpResponse(html)#http://127.0.0.1:8000/整数/操作符/整数 #path('//', views.cal_view), def cal_view(request,n,op,m):if op not in ['add', 'sub', 'mul']: return HttpResponse('Your op is wrong')result = 0 if op == 'add': result = n + m elif op == 'sub': result = n - m elif op == 'mul': result = n * mreturn HttpResponse('结果为:%s'%(result))# http://127.0.0.1:8000/整数2位/操作符/整数2位注意，如果把此行代码放在下面，会被path('//', views.cal_view),行取代，不会执行 # re_path(r'^(?P\d{1,2})/(?P\w+)/(?P\d{1,2})$', views.cal2_view), def cal2_view(request, x, op, y):html = 'x:%s op:%s y:%s'%(x, op, y) return HttpResponse(html)#http://127.0.0.1:8000/birthday/年4/月2/日2 #re_path(r'^birthday/(?P\d{4})/(?P\d{1,2})/(?P\d{1,2})$', views.birthday_view), def birthday_view(request, y, m, d):html = "生日为%s年%s月%s日"%(y,m,d) return HttpResponse(html)#http://127.0.0.1:8000/birthday/月2/日2/年4 #re_path(r'^birthday/(?P\d{1,2})/(?P\d{1,2})/(?P\d{4})$', views.birthday_view) def birthday_view1(request, y, m, d):html = "生日为%s月%s日%s年"%(m,d,y) return HttpResponse(html)

# views.py from django.http import HttpResponse, HttpResponseRedirectdef test_request(request):print('path info is', request.path_info) print('method is', request.method) print('querystring is', request.GET) print('full path is', request.get_full_path())return HttpResponse('test request ok') #return HttpResponseRedirect('/page/1')

# urls.py path('test_request', views.test_request),

#views.pydef test_get_post(request):if request.method == 'GET': print(request.GET) print(request.GET['a']) #问卷调查 - from get兴趣爱好 - 复选框 print(request.GET.getlist('a')) print(request.GET.get('c', 'no c')) return HttpResponse(POST_FORM)elif request.method == 'POST': #处理用户提交数据 print('uname is', request.POST['uname']) return HttpResponse('post is ok') else: passreturn HttpResponse('--test get post is ok--')

# urls.pypath('test_get_post', views.test_get_post),

#在views.py中定义一个全局变量 POST_FORM = '''

用户名:

'''

MIDDLEWARE = [ 'django.middleware.security.SecurityMiddleware', 'django.contrib.sessions.middleware.SessionMiddleware', 'django.middleware.common.CommonMiddleware', #'django.middleware.csrf.CsrfViewMiddleware', 'django.contrib.auth.middleware.AuthenticationMiddleware', 'django.contrib.messages.middleware.MessageMiddleware', 'django.middleware.clickjacking.XFrameOptionsMiddleware', ]

TEMPLATES = [ {'BACKEND': 'django.template.backends.django.DjangoTemplates', 'DIRS': [os.path.join(BASE_DIR, 'django_pro12/templates')],# 修改此项 'APP_DIRS': True, 'OPTIONS': {'context_processors': [ 'django.template.context_processors.debug', 'django.template.context_processors.request', 'django.contrib.auth.context_processors.auth', 'django.contrib.messages.context_processors.messages', ], }, }, ]

# views.pyfrom django.template import loader def test_html(request): #方案1 t = loader.get_template('test_html.html') html = t.render() return HttpResponse(html)

{ { username }}是模板层的～～～～


path('test_html', views.test_html),

from django.shortcuts import render return render(request,'模板文件名','字典数据')

def test_html(request): #方案1 # t = loader.get_template('test_html.html') # html = t.render() # return HttpResponse(html)#方案2 from django.shortcuts import renderreturn render(request, 'test_html.html')

from django.shortcuts import render return render(request,'模板文件名','字典数据')

def test_html(request): #方案1 # from django.template import loader # t = loader.get_template('test_html.html') # html = t.render() # return HttpResponse(html)#方案2 from django.shortcuts import render dic = { 'username':'guoxiaonao','age':18}return render(request, 'test_html.html', dic)

from django.shortcuts import render def test_html_param(request):dic = { } dic['int'] = 88 dic['str'] = 'guoxiaonao' dic['lst'] = ['Tom', 'Jack', 'Lily'] dic['dict'] = { 'a':9, 'b':8} dic['func'] = say_hi dic['class_obj'] = Dog() dic['script'] = ''return render(request, 'test_html_param.html', dic)def say_hi(): return 'hahaha'class Dog: def say(self): return 'wangwang'

int 是 { { int|add:"2" }}
str 是 { { str|upper }}
lst 是 { { lst }}
lst 是 { { lst.0 }}
dict 是 { { dict }}
dict['a'] 是 { { dict.a }}
function 是 { { func }}
class_obj 是 { { class_obj.say }}
script 是 { { script|safe }}


path('test_html_param', views.test_html_param),

# views.py def test_if_for(request):dic = { } dic['x'] = 20 dic['lst'] = ['Tom', 'Jack', 'Lily'] return render(request, 'test_if_for.html', dic)

# test_if_for.html { % if x > 10 %} 今天天气很好 { % else %} 今天天气非常好 { % endif %}
{ % for name in lst %} { % if forloop.first %} &&&&& { % endif %} { { forloop.counter }}{ { name }}
{ % if forloop.last %} ===== { % endif %} { % empty %} 当前没数据 { % endfor %}

# urls.py path('test_if_for', views.test_if_for),

+加 -减 *乘 /除 = { { result }}