Maya Python游戏与影视编程指南 中文完整pdf扫描版
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django-admin startproject zqxt_views£¨ÏîÄ¿Ãû£© cd zqxt_views python manage.py startapp calc£¨Ó¦ÓÃÃû£©
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ÐÞ¸Ä calc/view.pyÎļþ
from django.shortcuts import render from django.http import HttpResponse def add(request): a = request.GET['a'] b = request.GET['b'] c = int(a)+int(b) return HttpResponse(str(c))
ÐÞ¸Ä zqxt_views/urls.py Îļþ£¬Ìí¼ÓÒ»¸öÍøÖ·À´¶ÔÓ¦ÎÒÃǸղÅн¨µÄÊÓͼº¯Êý¡£
from django.conf.urls import url from django.contrib import admin from calc import views as calc_views urlpatterns = [ url(r'^add/$', calc_views.add, name='add'), # ×¢ÒâÐÞ¸ÄÁËÕâÒ»ÐÐ url(r'^admin/', admin.site.urls), ]
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python manage.py runserver 8003
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http://127.0.0.1:8003/add/?a=4&b=5
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ÐÞ¸Ä calc/views.py Îļþ£¬ÔÙ¶¨ÒåÒ»¸öadd2º¯Êý
def add2(request, a, b): c = int(a) + int(b) return HttpResponse(str(c))
½Ó×ÅÐÞ¸Ä zqxt_views/urls.py Îļþ£¬ÔÙÌí¼ÓÒ»¸öÐ嵀 url
url(r'^add/(\d+)/(\d+)/$',calc_views.add2,name='add2'),
ÎÒÃÇ¿ÉÒÔ¿´µ½ÍøÖ·ÖжàÁË (\d+), ÕýÔò±í´ïʽÖÐ \d ´ú±íÒ»¸öÊý×Ö£¬+ ´ú±íÒ»¸ö»ò¶à¸öÇ°ÃæµÄ×Ö·û£¬Ð´ÔÚÒ»Æð \d+ ¾ÍÊÇÒ»¸ö»ò¶à¸öÊý×Ö£¬ÓÃÀ¨ºÅÀ¨ÆðÀ´µÄÒâ˼ÊDZ£´æΪһ¸ö×Ó×飬ÿһ¸ö×Ó×齫×÷Ϊһ¸ö²ÎÊý£¬±» views.py ÖеĶÔÓ¦ÊÓͼº¯Êý½ÓÊÕ¡£
ÎÒÃÇÔÙ·ÃÎÊ http://127.0.0.1:8003/add/4/5/ ¾Í¿ÉÒÔ¿´µ½ºÍ¸Õ²ÅͬÑùµÄЧ¹û£¬µ«ÊÇÕâ»ØÍøÖ·¸üÓÅÑÅÁË
´ò¿ª zqxt_views/urls.py
from django.conf.urls import url from django.contrib import admin from calc import views as calc_views urlpatterns = [ url(r'^admin/', admin.site.urls), url(r'^add/$',calc_views.add,name='add'), url(r'^add/(\d+)/(\d+)/$',calc_views.add2,name='add2'), ]
ÔÚ url(r'^add/$',calc_views.add,name='add'),ÖУ¬name='add'ÊÇÓÃÀ´¸ÉʲôµÎ°¡£¿
¼òµ¥Ëµ£¬name¿ÉÓÃÓÚÔÚtemplates,models£¬views¡¡Öеõ½¶ÔÓ¦µÄÍøÖ·£¬Ï൱ÓÚ¸ø¡°ÍøÖ·È¡ÁËÒ»¸öÃû×Ö¡±£¬Ö»ÒªÃû×Ö²»±ä£¬ÍøÖ·±äÁËÒ²ÄÜͨ¹ýÃû×Ö»ñÈ¡µ½¡£
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ÐÞ¸Ä *calc/views.py*
from django.http import HttpResponse from django.shortcuts import render def index(request): return render(request, 'home.html')
render ÊÇäÖȾģ°å
½«¡®calc'Õâ¸öapp¼ÓÈëµ½*zqxt_views/settings.py ÖÐ*
INSTALLED_APPS = [ 'django.contrib.admin', 'django.contrib.auth', 'django.contrib.contenttypes', 'django.contrib.sessions', 'django.contrib.messages', 'django.contrib.staticfiles', 'calc', ]
ÕâÑù£¬Ê¹ÓÃrenderµÄʱºò£¬Django»á×Ô¶¯ÕÒµ½INSTALLED_APPSÖÐÁгöµÄ¸÷¸öappϵÄtemplatesÖеÄÎļþ¡£
Ìáʾ£ºDEBUG=TrueµÄʱºò£¬Django¿ÉÒÔ×Ô¶¯ÕÒµ½¸÷¸öappÏÂstaticÎļþÖеľ²Ì¬Îļþ£¨js,css£¬Í¼Æ¬£¬×ÊÔ´£©
ÎÒÃÇÔÚcalcÕâ¸öappÖÐн¨Ò»¸ötemplatesÎļþ¼Ð£¬ÔÚtemplatesÖÐн¨Ò»¸öhome.html
Îļþ calc/templates/home.html ÖÐдÈëÒÔÏÂÄÚÈÝ
<!DOCTYPE html> <html lang="en"> <head> <meta charset="UTF-8"> <title>title</title> </head> <body> <a href="/add/4/5" rel="external nofollow" >¼ÆËã 4 + 5 </a> </body> </html>
ÐÞ¸Äzqxt_views/urls.py
urlpatterns = [ url(r'^$', calc_views.index, name='home'), url(r'^add/$', calc_views.add, name='add'), url(r'^add/(\d+)/(\d+)/$', calc_views.add2, name='add2'), url(r'^admin/', admin.site.urls), ]
ÔËÐзþÎñÆ÷python manage.py runserver 8004£¬·ÃÎÊhttp://127.0.0.1:8004/
ÎÒÃǼÆËã¼Ó·¨µÄʱºòÓõÄÊÇ /add/4/5/ £¬ºóÀ´ÐèÇó·¢Éú±ä»¯£¬±ÈÈç¸Ä³É /4_add_5/£¬µ«ÔÚÍøÒ³ÖУ¬´úÂëÖкܶàµØ·½¶¼Ð´ËÀµÄ /add/4/5/£¬±ÈÈçÄ£°åÖпÉÄÜÊÇÕâôдµÄ
<a href="/add/4/5/" rel="external nofollow" rel="external nofollow" >¼ÆËã 4+5</a>
Èç¹ûÕâÑùд¡°ËÀÍøÖ·¡±£¬»áʹµÃÔÚ¸ÄÁËÍøÖ·£¨ÕýÔò£©ºó£¬Ä£°å£¨template)£¬ÊÓͼ(views.py£¬±ÈÈçÓÃÓÚURLÌøת)£¬Ä£ÐÍ(models.py£¬»ñÈ¡¼Ç¼·ÃÎʵØÖ·µÈ£©ÓÃÁË´ËÍøÖ·µÄ£¬¶¼±ØÐë½øÐÐÏàÓ¦µÄ¸ü¸Ä£¬Ð޸ĵĴú¼ÛºÜ´ó£¬Ò»²»Ð¡ÐÄ£¬Óеĵط½Ã»¸Ä¹ýÀ´£¬¾Í²»ÄÜÓÃÁË¡£
reverse ½ÓÊÕ url ÖÐµÄ name ×÷ΪµÚÒ»¸ö²ÎÊý£¬ÎÒÃÇÔÚ´úÂëÖоͿÉÒÔͨ¹ý reverse() À´»ñÈ¡¶ÔÓ¦µÄÍøÖ·
ÎÒÃÇÔÚÖÕ¶ËÉÏÊäÈ룺python manage.py shell
>>> from django.core.urlresolvers import reverse # django 1.4.x - django 1.10.x
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>>> from django.urls import reverse # Django 1.10.x - Django 2.x еģ¬¸ü¼Ó¹æ·¶ÁË
>>> reverse('add2', args=(4,5))
u'/add/4/5/'
>>> reverse('add2', args=(444,555))
u'/add/444/555/'
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{% url 'name' %}
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{% url 'name' ²ÎÊý %}
Òò´Ë£¬ÎÒÃǽ«£ºtemplates/home.html ÖÐ
<a href="/add/4/5/" rel="external nofollow" rel="external nofollow" >link</a>¸Ä³É
<a href="{% url 'add2' 4 5 %}" rel="external nofollow" >link</a>
ÕâÑùµÄ»°£¬µ± urls.py ½øÐиü¸Ä£¬Ç°ÌáÊDz»¸Ä name£¨Õâ¸ö²ÎÊýÉ趨ºÃºó²»ÒªÇáÒ׸ģ©£¬»ñÈ¡µÄÍøÖ·Ò²»á¶¯Ì¬µØ¸ú×ű䣬±ÈÈç¸Ä³É£º
url(r'^new_add/(\d+)/(\d+)/$', calc_views.add2, name='add2'),
{% url ¡®add2' 4 5 %}¾Í»á±»äÖȾ³É/new_add/4/5/
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¾ßÌåµÄ˼·ÊÇ£¬ÔÚview.pyдһ¸öÌøת·½·¨£º
from django.http import HttpResponseRedirect
from django.core.urlresolvers import reverse
def old_add2_redirect(request, a, b):
return HttpResponseRedirect(
reverse('add2', args=(a, b))
)
ÒÔÉÏÕâƪDjango url,´ÓÒ»¸öÒ³Ãæµ÷µ½Áí¸öÒ³ÃæµÄ·½·¨¾ÍÊÇС±à·ÖÏí¸ø´ó¼ÒµÄÈ«²¿ÄÚÈÝÁË£¬Ï£ÍûÄܸø´ó¼ÒÒ»¸ö²Î¿¼£¬Ò²Ï£Íû´ó¼Ò¶à¶àÖ§³Ö½Å±¾Ö®¼Ò¡£
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