Qt--The concept of process and thread, Qt multithreaded programming, synchronization between multiple threads

1. The concept of processes and threads A. Concepts of processesa. Programs are data files in computer storage systemsSource code programs--text files that describe program behavior and functionalityExecutable program--binary file, load and execute directlyThe concept of a process has two layers, broadly speaking, it refers to a running activi ...

Posted on Tue, 20 Aug 2019 18:11:39 -0700 by cvincent

Spring-AOP Source Parsing (Case+Parsing)

1.AOP Interpretation From Baidu Encyclopedia AOP is the abbreviation of Aspect Oriented Programming, which means: facet-oriented programming, a technology for unified maintenance of program functions through precompilation and run-time dynamic agents.AOP is the continuation of OOP, a hot spot in soft ...

Posted on Thu, 08 Aug 2019 18:41:32 -0700 by electricblue

Look! Idle Fish Open Source Another Flutter Development Tool

Ali Mei Guide: With the rapid development of Flutter framework, more and more businesses begin to use Flutter to reconstruct or build new products. But in our practice, we found that on the one hand, Flutter has high development efficiency, excellent performance and good cross-platform performance, on the other hand, Flutter is also facing ...

Posted on Mon, 05 Aug 2019 20:54:22 -0700 by daydreamer

Java Calculator Upgrade to Policy Mode - Enumeration Policy

Last time we talked about it. Strategic model In this section, we will learn more about policy patterns from the simplest calculator. First, let's implement another basic calculator. public class Calculator { private final static String ADD = "+"; private final static String SUB = "-"; priva ...

Posted on Tue, 30 Jul 2019 21:56:56 -0700 by Yesideez

The Full Analysis of Android Picture Loading Framework (3) Deeply Explore the Caching Mechanism of Glide

For reprinting, please indicate the source: http://blog.csdn.net/guolin_blog/article/details/54895665 This article is published synchronously in my Wechat Public Number. I can pay attention to it by scanning the two-dimensional code at the bottom of the article or searching Guo Lin in Wechat. Every day I update the article. In the last a ...

Posted on Fri, 28 Jun 2019 12:29:08 -0700 by symantec

Ext JS 6 Learning Document - Chapter 2 - Core Concepts

Core concepts In the next chapter, we will build a sample project, and before that, you need to learn some core concepts in Ext JS, which will help you understand the sample project more easily. In this chapter, we will learn the following knowledge points: Class system, creating and extending classes Event Query of Ext JS Ob ...

Posted on Tue, 25 Jun 2019 12:01:55 -0700 by russellbcv

python unit test -- unittest

@(python) Unit testing is the testing of a single subroutine, function and process in a program, which is oriented to white-box testing. Unit test covers the input combination, boundary conditions and exception handling of common subroutines, and ensures the simplicity of unit test code as much as possible, avoiding the influence of bug s on te ...

Posted on Fri, 07 Jun 2019 12:56:17 -0700 by 01hanstu

Android, Chapter 3: AIDL and Messenger

AIDL (Android Interface Description Language) Ail is the abbreviation of Android Interface definition language. It is a description language of Android internal process communication interface, through which we can define the communication interface between processes. The purpose of AIDL is to enable you to bind a service of another process in ...

Posted on Tue, 21 May 2019 15:04:41 -0700 by VapiD

Core Code Understanding of Affective Analysis snownlp Package

snownlps is a Chinese emotional analysis package written in Python. It comes with a training set of Chinese positive and negative emotions, mainly a corpus of comments.Naive Bayesian principles are used to train and predict data.I looked at the main core codes of this package, made some comments on the process, and recorded them to avoid forget ...

Posted on Sat, 11 May 2019 07:33:47 -0700 by Irap

Mongodb Paper on Universal Query Encapsulation

Queries are very important in applications, and there are many patterns. Different business needs require different query conditions, and support and, or... In fact, it is true that there are more than N query classes in the program, and it is very likely that many of them query the same table, so I especially want to find a general query class ...

Posted on Fri, 10 May 2019 20:18:21 -0700 by sujithfem