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Preface With the security situation getting worse these days, I realized that there is a bug in our project that we often ignore: the security of configuration information in our project's configuration file, especially the security of user names and passwords for database connections.So here we need to encrypt the user name and password of th ...

In C++ programs, before the emergence of the new standard, C and C++ relied on a C library function rand to generate random numbers. However, this function generates uniformly distributed pseudorandom numbers, each of which ranges between 0 and a maximum RAND_MAX (at least 32767). There are some pro ...

Links to the original text: https://www.javadoop.com/post/AbstractQueuedSynchronizer When analyzing Java concurrent package java.util.concurrent source code, we need to understand AbstractQueued Synchronizer (abbreviated as AQS below), becau ...

About me A thoughtful programmer ape, a lifelong learning practitioner, currently works as a team lead er in an entrepreneurship team. The technology stack involves Android, Python, Java and Go, which is also the main technology stack of our team. Github: https://github.com/hylinux1024 Wechat Public Nu ...

Author: Alex RoninTranslator: Crazy Technology House Original: https://frontnet.eu/node-js-v... Reproduction is strictly prohibited without permission Node js view engine is like Blade in Laravel. The most basic definition is that the view engine is a tool that helps us write HTML code and reuse it in a shorter and simpler way than usual. In a ...

Preface The last article wrote about the overall architecture of jQuery. Learn the overall architecture of jQuery source code and build your own js class library Although I've read a lot of underscorejs analysis articles, I always feel a little bit less. Maybe it's just a shallow idea on paper. You never know what you're going to do. So I decid ...

C++ pointer, this pointer, static member I. C++ this Pointer This pointer points to the invoked object itself, and in the member function, there will be a default parameter this. If you've learned Python, you might know that every member function in Python has a parameter self, and this is something ...

1. enum enumeration type 1.1 Usage enum is a custom type in C enum values are integer values that can be customized as needed The first defined enum value defaults to 0 By default, the enum value is added to the previous defined value by 1 Variables of enum type can only take discrete values ...

abstract class Why define abstract methods: If you cannot define a method in terms of its specific implementation details; for example, when you define the eat method of the Person class, you cannot determine its specific implementation details, because Chinese, Western and South Asian people eat differently.This method can be defined as an abs ...

This article provides a brief description of arrays and basic usage of concepts and arrays. I. Basic concepts of arrays 1.1. The Status of Arrays Arrays are one of the most important data structures in any programming language. At the same time, different languages have different implementations and pro ...