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Programing
iQiyi user retention forecast
Go1.17 environment construction under Windows
Java experiment – define a class Student that represents student information, the requirements are as follows:
You can learn the Vue slot as soon as you learn it. Do you really want to take a look at it? (use scaffolding)
git learning (2) git creation warehouse, basic git operations git clone, git init, git status, git add, git diff, git reset HEAD, git rm file
JAVA Exercise 73-III. Printing Binary Tree from Top to Bottom III
C# Chart line chart uses the mouse wheel to zoom in, zoom out and pan the curve
How to understand Python classes and functions?
“New Semester, New FLAG” Breaking the Limit
HTTP status code description
Unity uses XML to create a simple login system
Kotlin learning path (2): control flow
Front End
Front-end: Detailed introduction to the usage of barrage tags (marquee)
uniapp implements interception before tabbar page jumps
Ajax Learning Log (5) – How to pass json format request parameters
Summary of common css centering methods
vue day01 template interpolation syntax MVVVM data proxy event processing modifier
css relative positioning and absolute positioning
gateway solves cross-domain problems, and has been solved by personal testing
CSS simple image centering
DOM —— Delete node
Ajax Advanced Chapter 02—Cross-domain and JSONP
I have painstakingly compiled a comprehensive collection of JavaScript knowledge points, with super detailed suggestions for collection! ! !
HTML rotating photo album (0 basics, learn in 1 minute)
Server
Regarding the solution to the problem of Windows request timeout when pinging a virtual machine
Summary of common redis commands and use of RedisDesktopManager
[Linux] Use of basic development tools in Linux environment – yum | vim | gcc & g++ | gdb | make & makefile | progress bar | git
nginx common configuration templates
Troubleshooting ideas and solutions to the problem of high CPU usage in Linux systems
Cache penetration, cache breakdown, cache avalanche detailed explanation
[Linux] Common instructions (2)
Detailed explanation of HAProxy restart mechanism
Solve vue multi-level routing cache failure Solve the multi-level routing cache problem based on keep-alive vue keep-alive cache failure vue-element-admin multi-level routing cache failure
Linux system-process concept
Ruoyi microservice Spring Cloud version—implementing service invocation and load balancing based on nacos+Feign
Linux[JavaEE]——Building a JavaEE development environment (with software installation tutorial and download address)
Big Data
Apache Spark Unauthorized Access Vulnerability
Graduation/private work/necessary, a standard open source front-end and back-end separation [springboot+vue+redis+Spring Security] scaffolding to make money–Ruoyi Framework
Mysql high-order sql statements
Use filters (row key filters, column family and column filters, value filters) in Hbase
spark required dependencies
Distributed ID solution
Java project: train ticket reservation system (java+JDBC+JSP+Servlet+html+mysql)
Hbase pseudo-distributed construction (detailed steps)
Spark yarn mode sets the core number, quantity and memory of the executor
Java project: Design and implementation of online Heihei network disk system (java+Springboot+ssm+mysql+maven)
HBase deployment is completed, but the Web UI interface cannot be opened. Effective solution
Java login Kerberos authentication expiration problem
Operating System
The Docker container is started successfully but the browser cannot be accessed (after the Docker container is started, check docker ps -a and you cannot see the ports (the ports column is empty) | The linux kernel version and the docker version are not compatible)
Hard work, Hongmeng system refuses GMS service, Google is in trouble this time
YOLOv3 object/target detection practical chapter (Windows system, Python3, TensorFlow2 version)
New version of playCover key mapping tutorial (Mac playing iOS Genshin Impact key mapping example)
Alibaba Cloud server construction and Pagoda panel installation (graphic tutorial)
Hongmeng OS2.0 device development Hi3861-basic function summary
npm install reports error command C:\WINDOWS\system32\cmd.exe /d /s /c node-gyp rebuild
Install docker on Mac (easy installation solution)
[Linux Ladder] Chapter 2 · Linux system environment setup
Windows 11 configure JDK environment variables
OpenHarmony standard equipment application development (3) – distributed data management
Install VMware on MAC M1 and install windows11
Development Tool
[IDEA]How to Chineseize IDEA&How to convert it back to English after Chineseization
IDEA’s high-quality plug-in Translation has updated its translation engine following the IDEA 2022.3 version.
Docker, which has 54k stars on Github, what exactly is it?
VsCode Studio’s C/C++ code automatic completion
Mobaihe CM311-1a does not require disassembly, flash firmware and + brush armbian to install docker and run Qinglong panel
A simple tutorial on how to use the MybatisX plug-in in SpringBoot (super detailed!!)
vscode optimized user experience (settings | plug-ins)
The simplest Anaconda+Python3.7 installation tutorial on the Internet for Win10 (100% successful)
Prometheus monitors K8S
IDEA2021.2 installation and configuration (continuous updates)
[Graphic tutorial to solve the problem of Chinese garbled output in vscode terminal]
Tutorial on installing mysql5.7 under docker
Hardware
[High-speed bus] Introduction to JESD204B
Windows kernel driver development (WDK environment construction)
[FPGA]RGMII interface
Storage system in ARM architecture
How to import Lichuang component packaging library into AD for use
Introduction to device drivers
Timing analysis and constraints based on Xlinx (1)—-What is timing analysis? What are timing constraints? What is timing closure?
ARM development (1) Preparatory knowledge – semiconductor devices, analog and digital parts, computer composition and principles
How to use the esp8266 module (detailed explanation) essential for getting started
Summary of IIC communication protocol (detailed description of the complete process)
Communication protocol (AXI)
The relationship and difference between latches, D flip-flops and registers
Artificial Intelligence
Prometheus deployment, operation and Grafana display
Matlab image processing (1) Convert color images to grayscale images (must read for beginners)
ImportError: cannot import name ‘Literal‘ from ‘typing‘ (D:\Anaconda\envs\tensorflow\lib\typing.py)
[H5 WeChat Authorization] Simple implementation of H5 page WeChat authorization function, WeChat developer tool reports system error, error code -1, undefined solution [Details]
The relationship between Tensorflow and cuda versions (with multiple cuda versions installed)
Commonly used selectors in CSS
3d object detection
pycharm installs torch and cuda (in the new environment created by anaconda)
[Alibaba Cloud] SMS service
python: Some problems and solutions when starting to use tensorflow
Performance optimization: MySQL usage optimization (1)
2022 “Graduate Students’ Scientific Research Literacy Improvement” Series Public Welfare Lectures CNKI Research Test
Mobile Development
Installed Build Tools revision 33.0.0 is corrupted. Remove and install again using the SDK Manager.
uniapp – share on WeChat on ios and android, download by opening appStore and app store
Flutter project packaging to generate APK
Download Android Studio
Understanding of mainAxisAlignment and crossAxisAlignment in flutter
Flutter Scheme is used (share the link on WeChat and open the App in the browser to jump to a specific page: such as details and event pages)
Android studio button click page jump
Overwriting the repositories warehouse address in gradle in Flutter and Android
Android set background color transparency
Dialog of Getx series
Teach you step by step how to make the navigation bar at the bottom of your mobile phone, and your boss will agree after reading it
Tips for using iPad as a secondary screen for Windows computers (details)
Security
CVE-2019-0708 vulnerability re-exploitation
Cisco simulator Cisco Packet Tracer 7.3.0 installation and configuration
Metasploitable-linux-2.0.0 target machine download and configuration tutorial
Kali system learning: practical demonstration of vulnerability scanning tool NMAP
A must-kill, impossible-to-prevent vulnerability, basic introduction to WEB security—file upload vulnerability
SUID privilege escalation
What are the network security related certificates?
Network security/penetration testing tool AWVS14.9 download/usage tutorial/installation tutorial
HFish | A safe, simple, and effective honeypot platform | Detailed instructions on how to build and use it
Detailed tutorial on installing sqlmap
Domain Name System Security Operation-DNS Cache Poisoning Attack Reloaded: Revolutions with Side Channels
The 20 most common types of cybersecurity attacks
Data Structure and Algorithms
9. Generalized table – Generalized table concept, storage structure, depth/length, copy algorithm
A brief explanation of singly linked lists
Supplementary questions for ZJUT’s 19th “Hangyin Financial Management Cup”
[Data structure] Huffman tree and Huffman coding implementation (C language)
Niu’s Academic Circle I (Greedy)
C language version – data structure – final course design – major homework (airline passenger booking system) with source code + experimental documents
In the 2022 1024 card event, how do programmers judge whether their cards can form 1024? Then have fun programming it︕
20220313 Simulation Competition Summary
[LeetCode]Replace spaces&&disappeared numbers&&split linked list&&product of arrays except itself
AcWing 1239. Solution to the maximum product problem using two pointers greedy
Audio And Video
YOLO series — YOLOV7 algorithm (1): Use a custom data set to run through the YOLOV7 algorithm
Based on python and deep learning (speech recognition, NLP) to implement local offline intelligent voice control terminal (with chat function and home control function)
Matlab obtains the pitch frequency and formant information of the speech and marks it on the spectrogram
Detailed explanation of the usage of fspecial function in matlab for image processing
WAVE audio format and conversion code
Complete interpretation of YOLOv5 network structure [source code + hand-drawn network structure + module structure]
Explain the profound in simple terms – understand DeepSORT (Principles) in one article with zero basic knowledge
“MATLAB Speech Signal Analysis and Synthesis (Second Edition)”: Chapter 5 Noisy Speech and Preprocessing
Configure and run ORBSLAM2 on Ubuntu20.04 (nanny-level tutorial)
ffmpeg command line usage
DevOps
CentOS7 detailed installation tutorial–super detailed graphic introduction
ssh: connect to host localhost port 22: Connection refused
Dual-link hot backup (load sharing) experiment
The first Qt program I ran on a Linux development board
vscode configure remote ssh
1. Docker’s springboot+docker swam realizes load balancing
Ruijie – Use username and password to log in to the router when logging in with Telent
SSH key
1+X intermediate mall cluster construction (three hosts)
[Resolved]Error: Failed to download metadata for repo ‘appstream’ : Cannot prepare internal mirrorlist
Embedded
(Super detailed 2) Detailed explanation of onenet data visualization, how to draw using intercepted data flow
Thoughts triggered by a key-pressing program (Part 1)
ESP-IDF tutorial for ESP32 (15) – Use internal Flash to store files
What is a host computer
[001] [ESP32 Development Notes] IDF project creation and CMake configuration
Summary of digital and electronic knowledge points
STM32+ESP8266+MQTT connects to Alibaba Cloud server (3. AT command connects to Alibaba Cloud platform)
Based on the 51 tracking car (the first project for beginners!!!)
Robomaster wheel motion calculation
Music player based on STM32, using PWM to control the buzzer
Design
OpenLayers realizes interactive drawing of points, lines and surfaces
Introduction to Bluetooth (6): Bluetooth Low Energy Information Interaction
An article to help you understand the difference between high-fidelity and low-fidelity prototypes
[Unity3D-UGUI Application] (4) Using UGUI pop-up window display model and pop-up window model interaction
IDEA background interacts with Android data
Axure rp9 manually introduces Echarts charts
Introduction to android and H5 interaction methods, mobile terminal hybrid development
██Harrow travel automated test order grabbing test program
[Axure interactive tutorial] 3 ways to hide page scroll bars
Making human-vehicle interaction more emotional/intelligent FAW Hongqi’s practice and thinking on smart cockpits
Game
Unity to WeChat game quick creation process
After Unity imports the fbx model, the rotation and position of the object automatically change during runtime.
Introduction to phase extraction algorithm (Phase Retrieval/PR) (to be updated)
Unity implements character movement and camera following
(01)ORB-SLAM2 source code analysis without blind spots-(04)Monocular tracking_overall framework explanationTrackMonocular→GrabImageMonocular
Unity 2D side-scrolling game (JUNGLE RULES)
Teach you step by step how to install VSCode (with illustrated steps)
How to play videos in Unity
[Solved] Direct local .aar file dependencies are not supported when building an AAR. Gradle upgrade to version 4.0 and above
UE4_UE5 making 3DUI-following the camera direction (with project)
Java
Detailed explanation of UnitTest for Python interface automated testing
[Take you step by step to learn JavaSE] Part 3: Operators and program logic control
Mockito + JUnit unit test example
Detailed explanation of the use of Java’s jmap command
Junit unit testing
[JavaSE] Multi-threading (3) User threads, daemon threads and seven major states of threads
SpringBoot unit testing-JUnit5
java.lang.StackOverflowError
About unit testing of JAVA backend
Troubleshooting the problem of high CPU usage in Java applications
PHP
Why do many people with computer majors switch careers and quit computer science after graduation? [Revealing the truth]
Java Date time zone settings (GMT and CST)
append() method in JAVA
Paper
Use java to implement a simple calculator
[New Features of Java 8] Java Stream uses findFirst() to find a piece of data that meets the conditions
Solution to install Linux Apache and start error reporting Job for httpd.service failed because the control process exited with error c
Java Minesweeper Game
Generate random numbers within a specified range in java
Multi-threaded ticket selling problem
Blockchain
Ambire Wallet 2022 Roadmap
Smart Contract Call Injection Vulnerability
Partial answers to the 2022 Fund Practitioners Qualification Management and Follow-up Vocational Training (self-answer)
What exactly is the Ethereum Virtual Machine EVM?
This is the characteristic of making money and the underlying logic
Teach you step-by-step how to make smart contracts open source | Multi-file contracts open source | Reference files open source
ethereum rpc
Top 5 Most Expensive NFTs of All Time
Ethereum 2.0 client Prysm builds and runs node records
Application of 300PLCmpi to Ethernet in aluminum profile aging furnace through Xingda Easy Control MPI-ETH-XD1.0
Python
Pandas knowledge points-detailed explanation of grouping function groupby
Package python project into exe and installation package
Python reads csv file
Use Request in Python to implement HTTP requests (data, json, file, headers, timeout)
20220316 Summary of technical points: How to convert Series into Dataframe
Passing of flask parameters
Backtrader Quantification & Backtesting 2 – Read Pandas data in the strategy and add more custom data columns to the strategy
It’s actually very simple and will teach you how to easily create cool data visualization on a large screen.
The difference between operating Pandas and Excel tables
web security-SSTI template injection vulnerability
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