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  • Is STM32 really lagging behind?

    Is STM32 really lagging behind? As an embedded development veteran, I have heard people say "STM32 is outdated" more than once, especially those who are just getting started or have read a few articles. Whenever I hear such remarks, I can't help but want to laugh, but I'm a little helpless. This view often comes from people who don’t have a deep understanding of the embedded field, who may be misled by some marketing or one-sided information. Today, I want to...

    Updated on 2025-04-18 21:18:52

  • Python requests proxy (Proxy) usage tutorial

    In Python's requests library, using a proxy server allows you to send HTTP requests over different network routes. A proxy server can help hide real IP addresses, bypass geo-restrictions, or load balancing....

    Updated on 2025-04-18 20:30:03

  • SIP gateway (Gateway) operation in FreeSWITCH

    freeswitch is a simple and easy-to-use VOIP open source softswitch platform. The following is a technical guide on the operation of SIP gateways (Gateway) in FreeSWITCH, which is compiled based on the official documentation provided: 1. Gateway lifecycle management 1. Create a new SIP Profile and start FreeSWITCH supports multiple SIP Profiles (such as interns)...

    Updated on 2025-04-18 17:50:15

  • Linux log management

    Concept In Linux systems, log files are records generated during the system operation, which are used to help system administrators monitor system status, troubleshoot problems, detect security events, etc. Linux system log files are usually stored in the /var/log directory, and different log files record different types of information. Linux system core log file /var/log/messages records the system's running process...

    Updated on 2025-04-18 16:21:19

  • What is the difference between gRPC and traditional RPC? Explain one article clearly!

    Nowadays, everyone who works in system development likes to develop "microservice architecture" - simply put it simply, breaking a large system into many small services, which is more flexible and easier to expand. So how do you communicate between these services? It depends on a technology called RPC (remote procedure call). Today we will talk about its "evolution version": gRPC and see what is different from traditional RPC....

    Updated on 2025-04-18 11:42:44

  • BLAKE3 (a more efficient verification method than MD5)

    1.BLAKE3 verification: It can better ensure the uniqueness of the file, extremely difficult to collide, and extremely fast calculation speed. It is a verification method that takes into account both safety and performance. 2.1 Comparison of G file calculation speed 3. Application https://github.com/BLAKE3-team/BLAKE3.git 4. Linux virtual machine compilation #include "blake3....

    Updated on 2025-04-18 11:24:34

  • WeChat mini program/H5 to adjust the confirmation and collection interface

    🧾 Detailed explanation of the WeChat mini program/H5 to adjust the confirmation and collection interface (with code + platform compatibility p......

    Updated on 2025-04-18 10:09:41

  • WeChat mini program/H5 to adjust the confirmation and collection interface

    ## 🧾 Detailed explanation of the WeChat mini program/H5 to adjust the confirmation and collection interface (with code + platform compatibilit......

    Updated on 2025-04-18 10:03:04

  • To do Docx preview, you must make this divine library! !

    Hey, I am Immersive Fun Talk. This article was first published on [Immersive Fun Talk], and my personal blog https://yaolifeng.com is also updated simultaneously. Please indicate the source and copyright information at the beginning of the article when reprinting. If this article is helpful to you, please like, comment, forward it. Support it, thank you! With just a few lines of code, you can perfectly preview Word documents, even table styles and pages in your browser....

    Updated on 2025-04-18 09:56:24

  • Tutorial on the implementation of the email automatic reply assistant (Rasa/SMTP)

    In modern office scenarios, handling large amounts of emails is a time-consuming and error-prone task. In order to improve work efficiency, we can us......

    Updated on 2025-04-17 23:41:27

  • SAP HANA Quickly Export Import with Command Line

    Wedge I have been struggling for nearly an afternoon today to use the command line tool that comes with SAP HANA to export data backups. SAP HANA (sequently referred to as Hana) is an in-memory database. I have never been afraid of anyone in terms of performance. Since SAP HANA provides Hana Studio, a desktop tool for easy operation and maintenance and DBA use, the official tutorial is also demonstrated using Hana Studio...

    Updated on 2025-04-17 20:43:42

  • Java to create an Excel tool class

    An Excel file is essentially a zip compressed file. You can decompress it to obtain sub-files. On the contrary, you can get Excel files by modifying the suffix name after compressing the subfile. The XLSX file is mainly composed of the following parts: [Content_Types].xml‌: describes the types and relationships of all components in the XLSX file. (Core file) _rels/.rels‌: Contains all components in the workbook...

    Updated on 2025-04-17 18:32:25

  • journalctl -u docker View logs

    The source for reprinting is indicated: 1. View the latest log of the Docker service (real-time scrolling) sudo journalctl -u docker -f -f parameter indicates that following (f) will continue to output the latest log (similar to tail -f). 2. Check the log of the last day sudo journalctl -u docker --sin...

    Updated on 2025-04-17 17:31:57

  • Python arg parse

    Python argparse module usage guide argparse is the core module used in the Python standard library for building command line tools, supporting parameter analysis, automatic generation of help information and error handling. The following are its core functions and usage methods: Basic usage Steps: Create a parser: Initialize the parser object through ArgumentParser and define program description information...

    Updated on 2025-04-17 17:04:24

  • Recursively obtaining department numbers

    Preface Recursion is a very important concept in programming. Simply put, recursion refers to a function calling itself directly or indirectly in its definition. This calling mechanism allows functions to solve complex problems by decomposing problems into smaller similar subproblems. ‌Definition of Recursion‌: Recursion is a method of calling the function itself in a function definition. It usually contains one or more base cases, using...

    Updated on 2025-04-17 15:37:54

  • Spring Boot determines whether the service (cluster, stand-alone) uses certain masters based on configuration

    For example: In cluster mode, I want to use Nacos components, but I don't want to use it on the stand-alone version. server: name: VipSoft Server Dev port: 8193 cloud: nacos: discovery: server-addr: 127.0.0.1:8848 #Register center address (separated by cluster, number) clus...

    Updated on 2025-04-17 15:12:41

  • Linux User and User Group Management

    Concept Linux system is a time-sharing operating system with multiple users and multi-tasking. Any user who wants to use system resources must have an......

    Updated on 2025-04-17 15:10:41

  • Summary .NET 9 Performance Optimization Black Technology: The Complete Guide to From Memory Management to Web Performance

    Introduction: The importance of performance optimization and performance improvements in .NET 9 ❝ Performance optimization is not only about code exec......

    Updated on 2025-04-17 13:19:51

  • 【FAQ】HarmonyOS SDK closed source open capability —Health Service Kit

    1. Problem description: Call the healthStore API according to the official document to apply for user authorization; there is a pop-up window that pulls up, but there is no callback, and there is no callback when checking the permission interface. Solution: 1. Before calling the interface, you need to use the init method for initialization. If there is no callback, please confirm whether the init method has been called. https://developer.huawei.com/cons...

    Updated on 2025-04-17 11:29:49

  • Phishing websites and malicious link detection guide

    Guide to detecting phishing websites and malicious links 1. What is a phishing website (Phishing Websites) Phishing websites are usually disguised as real websites such as banks, e-commerce or social platforms, and conduct fraud by inducing users to enter sensitive information such as account numbers, passwords, credit card numbers, etc. Common methods include: URL forgery: exploit domain spelling differences (such as bank0famerica.com vs bankof...

    Updated on 2025-04-17 11:16:53