Python Virtual Environment Guide 2023 Edition

Python is also an important tool in the fields of data science and machine learning (yyds). This is a Python environment guide that tells you how to configure the Python environment and install related libraries for data science and machine learning research. In the field of data science and machine learning, we can use the […]

[Vue Principle Analysis] Virtual DOM

Vue.js is a popular JavaScript framework that uses the concept of virtual DOM to improve performance and development efficiency. Virtual DOM is one of the cores of Vue.js. It builds a lightweight DOM tree in memory instead of directly operating the real DOM, thereby reducing the number of operations on the real DOM and improving […]

Why use virtual environment in python? (Virtual environment function and virtual environment construction, switching, exit, migration and packaging) code demonstration. Official venv usage (**)

Detailed graphic and text explanation of python’s virtual environment (virtual environment functions and virtual environment construction, switching, exit, migration and packaging) code demonstration https://blog.csdn.net/weixin_45440484/article/details/130144943 http://www.360doc.com/content/23/0828/21/1339386_1094251670.shtml Why use a virtual environment? First, a virtual environment helps keep your projects clean and separate. You don’t have to worry about one project’s dependencies breaking another, which makes project […]

Open BinLog and connect to the virtual machine canal

Tip: After the article is written, the table of contents can be automatically generated. For how to generate it, please refer to the help document on the right. Article directory 1. What is canal? Canal working principle 2. Usage steps 1. Use docker to create a database container 2. Turn on binlog mode 3. Canal […]

JVM source code analysis: processing details of soft, weak and virtual references

Table of Contents Write in front: Source code analysis: Java level: JVM level: Danger points of use: Summarize: Version Information: jdk version: jdk8u40 Garbage collector: Serial new/old Write in front: Different garbage collectors have different algorithms and different efficiencies. The default is ParallelScavenge new/old in JDK8. The author used Serial new/old when writing the article. […]

Analysis of anonymous mapping page fault exception in Linux kernel virtual memory management

Before explaining the anonymous mapping page fault exception, we must first understand what is an anonymous page? Corresponding to the anonymous page is the file page. We should understand the file page well, which is the page that maps the file, such as mapping the file to the virtual memory through mmap and then reading […]

Java Virtual Machine (JVM)

JVM Introduction to JVM Overall structure of JVM JVM runtime data area program counter Java virtual machine stack native method stack heap method area Class loading mechanism 1. Loading 2. Verification 3. Preparation 4. Resolution 5. Initialization class loader Bootstrap ClassLoader Extension ClassLoader: Application ClassLoader: Parent delegation mechanism Introduction to JVM JVM (Java Virtual Machine) […]

Base class pointers, derived class pointers and virtual functions in C++ inheritance

In C++, Inheritance is one of the core ideas of object-oriented programming. It builds a hierarchical relationship between classes, with the concepts of parent classes and subclasses. This article will summarize the relevant content of base class pointers, derived class pointers and virtual functions, and attach corresponding sample codes. 1. Base class pointer, derived class […]

Java21-Virtual thread small test-meethigher

Other languages, such as Go, have early supported something called coroutines, which are lightweight threads, while Java asynchronous programming only has the concept of threads. The overall changes brought about by the upgrades after JDK8 are not big, but the Virtual Thread brought by JDK21 this time is still worth experiencing. It can be said […]

Development and implementation of virtual display based on IDD technology

Article directory Development and implementation of virtual display based on IDD technology 1. Technical architecture 2. IddCx object 2.1 IDDCX_ADAPTER structure 2.2 IDDCX_MONITOR structure 2.3 IDDCX_SWAPCHAIN structure 3. About EDID 4. IDD development 5. About the installation of IDD driver 6. About mounting and running the device 7. Other questions 7.1 About IddCxAdapterInitAsync failure 8. […]