Python framework django Basic Guide, python framework django
Django introduction:
Django is an open-source Web application framework written in Python. It adopts the MVC framework model, namely Model M, view V and controller C. However, in actual use of Django, Django focuses more on models, templates, and Views, which are called the MTV mode. The main purpose of Django is to develop a database-driven website easily and quickly. It emphasizes code reu
framework, the framework can be expressed in code, can be directly executed or reused, and only instances of the schema can be represented in code; Design patterns are smaller elements than frames. A framework often contains one or more design patterns, and the framework is always targeted at a particular application area, but the same pattern can be applied to a variety of applications. It can be said that the framework is software, while design patterns are software knowledge. What are the fr
; Design patterns are smaller elements than frames. A framework often contains one or more design patterns, and the framework is always targeted at a particular application area, but the same pattern can be applied to a variety of applications. It can be said that the framework is software, while design patterns are software knowledge.What are the framework modes?MVC, MTV, MVP, CBD, ORM and so on;What are the frameworks?C + + language qt, MFC, Gtk,jav
kde vcd player is a shared software provided with the KDE window manager. After KDE is installed, it is installed. This VCD player User Interface 2 shows, it is relatively weak, only play the VCD disc in the CD-ROM, but not support other data sources, you can only pause, fast forward, and rollback operations during playback. If you have not found any other playback software for the moment, use it to watch the VCD.
MpegTV Player
MpegTV Player is a VCD playback software released by M
Coupling (coupling), also known as coupling, represents a measure of the degree of association between modules .Coupling and Independence are relative. The stronger the coupling, the worse the independence.Independence brings a lot of benefits. Readability and improve code reuse. Late maintenance is very convenient.HTML CSS JS is separated from each other.The MVC framework is the meaning of the model-view-controller.What are the framework modes? MVC, MTV
Python_web Frame----------------MVC------------MTV Based on WSGI----import WSGI MoudleDjangoImplement the Socket YourselfTornadoImplement your own web frameworkImplement your own webWrite based on WsgiDjangoEB framework Request Period Processing a user request to place an HTML template operations database Controllers views modals Views Template modals Mvc/
Django Default on Prevent CSRF (cross-site request forgery) attacks, when the post request, did not upload the csrf field, resulting in a checksum failure, reported 403 errorWorkaround 1:Comment out this code, you can.Cons: Causing Django projects to completely prevent CSRF attacksWorkaround 2:In the views.py file#导入, you can make this request ignore the CSRF check from DJANGO.VIEWS.DECORATORS.CSRF import csrf_exempt# in the handler function plus this adorner @csrf_exemptdef Post (Request):
and does not affect all subclasses.2Definition andUMLFigureDefinition: Separate the abstraction from the implementation, so that they can all change independently. We can understand this:Client: the calling class. Abstraction: An abstract class that maintains a reference to the behavior implementation (invoking The implementation of Concreteimplementor). Refinedabstraction: The subclass of the abstract class, overriding the implementation of the parent class. Implementor: interface, interface
framework is software, while the design mode is software knowledge.(3) What are the framework modes?MVC, MTV, MVP, CBD, Orm, etc;(4) What are the frameworks?C ++ QT, MFC, GTK, Java SSH, SSI, PHP smarty (MVC mode), Python Django (MTV mode), etc.(5) What are the design patterns?Factory mode, adapter mode, policy mode, etc.In short: the framework is wise and used to divide software design. The design mode is
without any deviation. // Gcj02 is developed by the test board. Private static final String COOR_TYPE = "gcj02"; private static final String BAIDU_LOCAL_SDK_SERVICE_NAME = "com. baidu. location. service_v2.9 "; // The positioning sdk provides two locating modes: timed locating and app active request locating. // SetScanSpan
Then locate the request in a specific Activity. The processing method is as follows:
@ Overridepublic void oncreate (bundle savedinstancestate) {super. oncreate (savedinst
Today I found a small problem with the mp3 converter (mp3 converter v2.0). I 've got a lot of vod on emule and want to use mp3 to listen to it, after the conversion, I found that the file name is very short (everything on the emule is a super-long name), and I am surprised that the programmer must be very lazy and use the first one directly '. 'The name before the symbol is helpless, so I had to compile a small program and modify it in batches.Code
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sets, it can be used in multiple applications and fields. the reuse of application frameworks provides general or ready-made infrastructure for specialized fields to achieve the highest level of reusability.Although the framework is similar to the design model, it is fundamentally different. The design pattern is a description of the problem that occurs repeatedly in a certain environment and the solution to the problem. It is more abstract than the framework. The framework can be expressed in
(), user_list = ['linux ', 'python', 'bootstarp'], num = 1) # Why is jinja used for replacement, because it is not just text It also supports the if judgment for loop operation # note that the default unicode encoding is set to UTF-8 return [bytes (result, 'utf8')] urllist = [('/Index', index),] def RunServer (environ, start_response): start_response ('2014, 200 OK', [('content-type ', 'text/html')]) # Return different strings based on different URLs #1. Obtain the url [Where can I obtain the
The popular music magazine Rolling Stone and mtvmusic TV jointly selected the world's greatest 1963 popular songs since one hundred. The classic old song "yesterday" (yesterday) of the "beetle" band has been sung for years. It has been a constant and ranked first in the S.
Rolling Stone and MTV plan the selection. The reason why we set the selection time range to 1963 to the present is that the first time the "beetle" band debuted in the United Stat
to MVP, but officially known as MTV, Models,template,viewsLook at the official explanation:Django appears to is a MVC framework, but the Controller the "view", and the "View" of the "template". How come do I use the names??Well, the standard names is debatable.In our interpretation of MVC, the "View" describes the data that gets presented to the user. It ' s not necessarily how the data looks, but whichdata is presented.The view describes which data
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