Programmer Think

    In actual production projects, it is often necessary to encrypt and store sensitive data such as ID card information, mobile phone number, real name, etc. in the database, but manual encryption and decryption of sensitive information in the business code is not elegant, and there may even be wrong encryption, missing encryption, and bus ...

theme: cyanosis Background: one of our systems has a function to prohibit copying. If there is no permission to copy, a toast will pop up when copying. It's essentially a document oncopy = () => { ... }. One day, a user reported that as soon as she entered the page, she would pop up a toast that was forbidden to copy, and it would pop up ev ...

1 Introduction In recent years, with the sustained and rapid development of economy and society and the steady improvement of national living standards, cars have gradually entered the lives of ordinary people. The number of cars in China is increasing. Parking difficulties and traffic jams have appeared in many cities. In order to cope with t ...

catalogue 18. Responsibility chain model 18.1 example 2 19. Observer mode 19.1 example 2 20. Status mode 18. Responsibility chain model Responsibility chain mode: make multiple objects have the opportunity to process the request, so as to avoid the coupling relationship between the sender and receiver of the request. Connect these objec ...

Recently, I learned golang and began to use it in business. Let's use a front-end perspective that only knows js/ts to quickly familiarize ourselves with the go language and get started at the speed of light in 10 minutes. The simple grammar level will not say much, but only start from some common and prominent points. For more in-depth langua ...

Usually, the requirements are front and rear end joint debugging, and sometimes there may be one more client-side joint debugging. However, there are still some requirements. The front-end and front-end need to be jointly debugged - iframe embedding. Some very complex pages may choose to be directly embedded, and the popular micro front-end is ...

Reprint blog: https://cloud.tencent.com/developer/article/1408608 Question A: form A team Total score of this question: 5 points As a basketball team coach, you need to choose one player from position 1 to position 5 from the following list, Form the team's starting lineup. The score of each player from position 1 to position 5 is shown i ...

theme: smartblue0. After reading this article, you willUnderstand the definition and characteristics of StreamUnderstand the basic and high-order usage of Stream 1 preface In our daily use of Java, we have to deal with collections. Various operations for sets are somewhat similar to SQL - add, delete, modify, query and aggregate operations, bu ...

This article will give a detailed explanation of NuPlayer based on Android N source code. NuPlayer is a player used for local and streaming media playback in Android.1. AHandler mechanismFirstly, the ubiquitous AHandler mechanism in NuPlayer is introduced frameworks/av/include/media/stagefright/foundation/ frameworks/av/media/libstagefright/ ...

1, Background In the process of maintaining basic public components, the author accidentally modified the package path of the class. Unfortunately, this class is referenced and passed by various businesses in the facade. Fortunately, for the same class, the package paths of providers and consumers are inconsistent, which does not cause errors ...