Python programming ideas (26): member variables

Miss Lining has launched the Python programming thought e-book in the WeChat official account of geek origin, which includes the core technology of Python and the usage of Python's main function library. Readers can enter 160442 in the official account of geek origin and begin learning. General cat ...

Posted by toro04 on Sun, 28 Jun 2020 05:29:10 +0200

Document operation related

Initial knowledge of file operation Using python code to write a very low software to operate files File path: Path Open mode: read, write, append, read write, write read Encoding mode: utf-8, gbk, gb2313 '' Trilogy1. Open file2. Perform corresponding operations on the file handle3. Close file''' Use the open() functi ...

Posted by catchy on Sun, 28 Jun 2020 05:05:53 +0200

Basic syntax of jQuery, selector, DOM operation

What is JS framework JS framework is also written in JavaScript language. The framework itself provides a lot of new methods, which can simplify JS code and improve development efficiency. To put it bluntly, it is a defined JS file that encapsulates many functions inside, which can greatly simplify ou ...

Posted by dhimok on Sun, 28 Jun 2020 04:43:26 +0200

C + + / C -- Introduction to istringstream, ostringstream and stringstream [reprint]

Article catalog 1 the input and output of C + + are divided into three types: 1.1 console based I/O 1.2 file based I/O 1.3 string based I/O 2 header file 3 functions 4. Specific analysis 4.1 istringstream class 4.2 ostringstream class 4.3 stringstream class 1 the input and output of C + + ar ...

Posted by bullbreed on Sun, 28 Jun 2020 04:35:28 +0200

Why the jar of springboot can run independently

Welcome to my GitHub https://github.com/zq2599/blog_demos Content: all original articles are classified, summarized and matched source code, including Java, Docker, Kubernetes, DevOPS, etc; jar files that can run independently When developing spring boot applications, it is a common way to start app ...

Posted by php.ajax.coder on Sun, 28 Jun 2020 04:08:50 +0200

An hour to develop a Demo with Hyperledger Fabric

First understand what it is, then understand how to do it, then understand why As the beginning of the series, this paper tries to make you have a general understanding of fabric through a simple process of fabric application development. preface Put three pictures first:     The first is Gar ...

Posted by nats on Sun, 28 Jun 2020 04:01:28 +0200

The responsibility chain pattern of PHP design pattern

The model of responsibility chain belongs to the design model of object behavior. Gof class diagram and explanation GoF definition: allows multiple objects to process requests, thus avoiding the coupling between the sender and receiver of the request. Link these objects into a chain and pass the reque ...

Posted by asa_carter on Sun, 28 Jun 2020 03:57:15 +0200

A thorough understanding of Bean analysis, creation, and use in Spring

Spring Loads Beans, Instantiates Beans, Gets Bean Processes The purpose of this paper is to analyze the process of Spring loading beans, instantiating beans, and getting beans by analyzing the source code. Some of the core content will be explained in the source code.Content is dull, careful! Step one, start a Spring project Spring Startup ...

Posted by fusionpixel on Sun, 28 Jun 2020 02:23:28 +0200

vue3.0 Source Parsing 1: Data Binding Principles (Up)

Preamble Introduction Beginning with this article, we are officially entering the vue3.0 source code parsing process.Personally, starting with ceateApp is not the best way to learn, so let's start with composition-api responsive principles and work together to learn what dramatic changes vue3.0 brings. The serialized articles are roughly the s ...

Posted by reinmedia on Sat, 27 Jun 2020 19:18:18 +0200

Detailed usage of python hasattr() getattr() setattr() function

hasattr(object, name) function: Determines whether an object has a name attribute or a name method, returns a bool value, returns True with a name attribute, or returns False. Note: name should be enclosed in parentheses. class function_demo(): name = 'demo' def run(self): return "hello function" functiondemo = function_demo( ...

Posted by Steppio on Sat, 27 Jun 2020 18:17:18 +0200