python3-cookbook notes: Chapter IX Metaprogramming

Each section in the python3-cookbook explores the best solution of Python 3 to a given problem in three parts: problem, solution, and discussion, or how Python 3's own data structure, functions, classes, and so on, can be better used in a given problem.This book is very helpful for understanding Python 3 and improving Python programming capabil ...

Posted on Wed, 26 Feb 2020 08:28:24 -0800 by maxpup979

ES6 learning notes agent and reflection

12-1. Attribute descriptor (review) The Property Descriptor is a common object used to describe the related information of a property; Through object.getownpropertydescriptor (object, property name), you can get the property descriptor of a property of an object; You can also get all the property desc ...

Posted on Wed, 26 Feb 2020 01:42:36 -0800 by ioop

spring life cycle

The life cycle of Spring Bean is a hot topic in Spring interview. This question not only examines the micro understanding of Spring, but also the macro understanding of Spring. It's not easy to answer it well! This article hopes to start from the source point of view, and help the interviewers to tho ...

Posted on Tue, 25 Feb 2020 20:56:24 -0800 by dabas

Principle and implementation of Vue bidirectional data binding 1

Do you remember how it felt when you first used Vue? Bidirectional data binding is so magical that it can make the code so simple. 1, Vue core ideas Before you understand the two-way binding of Vue, you need to recall the core idea of Vue. Remember getter/setter, Watcher? About getter/setter metho ...

Posted on Tue, 25 Feb 2020 19:05:16 -0800 by nanban

Filters, listeners, Servlet3.0 annotations

1, Filter 1. introduction The whole process of Filter: Filter preprocesses the user's request, then submits the request to the Servlet for processing and generates the response, and finally Filter reprocesses the server's response. In a web application, you can develop and write multiple filters, w ...

Posted on Tue, 25 Feb 2020 04:28:48 -0800 by MaxBodine

[enjoy learning Netflix] XIV. How can Netflix Archaius provide configuration support for multi environment, multi region and multi cloud deployment?

If you want to have an extraordinary life, please make extraordinary efforts - > return to the column directory Code download address: https://github.com/f641385712/netflix-learning Catalog Preface text DeploymentContext SimpleDeploymentContext ConfigurationBasedDeploymentContext DynamicContex ...

Posted on Mon, 24 Feb 2020 05:01:59 -0800 by chandler

Homework of python course selection system

#Course selection system#Role: school, student, course, lecturerRequest:#1. Establish two schools in Beijing and Shanghai#2. Create three courses: Linux, Python and go. linux\py opens in Beijing and go opens in Shanghai#3. Courses include, cycle, price, and create courses through schools#4. Create a class through the school, and the class is as ...

Posted on Mon, 24 Feb 2020 03:43:39 -0800 by xudzh

jQuery in javascipts for python learning

Introduction to jQueryjquery is a function library, a js file, which can be used when a page is introduced with a script tag.Download address:Official jQuery website: http://jquery.com/<script type="text/javascript" src="js/jquery-1.12.2.js"></script> Writing the statement to get the element to the header of the page will cause err ...

Posted on Sun, 23 Feb 2020 10:31:52 -0800 by Tr4mpldUndrfooT

[TCP/IP]: application layer (HTTP protocol)

1. What is http HTTP is hypertext transport protocol, which is based on TCP and IP protocol. 1.1 HTTP/0.9 - single line protocol The initial version of TTP did not have a version number; it was later called 0.9 to distinguish it from later versions. HTTP / 0.9 is very simple: the request consists of ...

Posted on Sun, 23 Feb 2020 03:48:46 -0800 by ShashidharNP

The usage of foreach loop in MyBatis

1, Before you know foreach, first understand the mybatis input parameters and parameterType 1. When we pass parameters to the corresponding mapper.xml file in Dao layer, we can pass the following parameters: ①. Basic data types (such as int/Integer, long/Long, float, etc.) ②. Simple reference data type (such as String, User entity class object, ...

Posted on Sat, 22 Feb 2020 23:42:39 -0800 by revaaron