Object-Oriented Class Membership of Python Full Stack Road Series

The existence of a feature is to disguise a method as a field. property Class methods are called as common fields, that is, they are called with objects without parentheses. #!/usr/bin/env python # _*_coding:utf-8 _*_ class Foo: @property def Characteristic(self): print("Characteristic ...

Posted on Fri, 04 Oct 2019 05:06:18 -0700 by greens85

Using canvas to make a cinema seating function in react

Frontier: The project uses the create-react-app scaffolding, which is to make an effect so there is only one page, but also uses the react-router-dom routing to details as the path='/'home page. Design sketch:I. App.js import React from 'react'; import {BrowserRouter,Route} from 'react-router-dom' import Details from './routes/Details' funct ...

Posted on Wed, 02 Oct 2019 19:25:32 -0700 by kyberfabrikken

Asynchronous and multithreaded Thread

When you first touch threads, it feels amazing. Although it is not very clear, it feels very compelling. Refer to some articles written by big guys: https://www.cnblogs.com/yilezhu/p/10555849.html I still like the articles written by this big man. https://www.cnblogs.com/mushroom/p/4575417.html   Multithreading is a very important part of. ...

Posted on Fri, 20 Sep 2019 02:45:46 -0700 by devain

One line of Python code's legendary Technology

First, you need to understand Python Zen, a line of code output "The Zen of Python": python -c "import this" """ The Zen of Python, by Tim Peters Beautiful is better than ugly. Explicit is better than implicit. Simple is better than compl ...

Posted on Mon, 16 Sep 2019 02:17:09 -0700 by Zpixel

Several lines of python code-verification code recognition processing

First, in automated testing, there are two ways to deal with verification codes: 1. Look for development to remove validation codes or use universal validation codes 2. Automatic identification using OCR Here, one way is to communicate with R&D. ...

Posted on Sun, 15 Sep 2019 07:05:00 -0700 by the_ut_tick

Python implements network multi-person chat room, web development is actually so simple

Network Multi-Person Chat Room File structure:   chatroom- client.py_client code- language.py_Language File- server.py_server-side codesettings.py Settings File   0 directories, 4 files Use module: os sys socket select Train of thought: settings.py, defining HOST, PORT, ADDR, buffersize, language, curuser and other variables. server.py, ...

Posted on Tue, 10 Sep 2019 19:13:20 -0700 by lonewolf217

IV. Import and Expansion Instructions

@ Rules and instructions @import Sass extends the CSS@import rule to allow it to import SCSS or Sass files. All SCSS or Sass files imported will be merged together into the same CSS file Any variable or mixins defined in the import file can be used in the main file. Typically, @import looks for the Sass file and imports it, but in the follow ...

Posted on Mon, 09 Sep 2019 23:39:00 -0700 by BIOSTALL

Creating Objects/Common Annotations Using Annotation Annotation

When using xml declaration method to create objects, it is easy to cause too much code declared in the configuration file, which is not conducive to later code maintenance. Annotation annotations provided in spring can be used to solve this problem. ...

Posted on Sat, 07 Sep 2019 00:40:04 -0700 by sargus

web Crawler Explanation - Scrapy Framework Crawler - Scrapy Use

xpath expression// x means to look down for n-level specified labels, such as: //div means to look up all div labels/ x means to look down for a specified label/@ x denotes the value of the specified attribute, which can be linked as: @id@src[@Property Name= "Property Value"] indicates that a tag whose specified property is equal to ...

Posted on Mon, 02 Sep 2019 07:12:08 -0700 by said_r3000

web crawler, scrapy module tag selector to download pictures, and regular matching Tags

Tag selector object HtmlXPathSelector() creates a tag selector object with parameters that receive html objects called back by responseNeed to import module: from scrapy.selector import HtmlXPathSelector The select() tag selector method is a method in the HtmlXPathSelector. The parameter receives the selector rule and the return list element i ...

Posted on Mon, 26 Aug 2019 20:17:23 -0700 by peaforabrain