Programmer Think

Interceptor 1.1. concept Interceptors in Java are objects that dynamically intercept action calls. It provides a mechanism that allows developers to define the code to be executed before and after the execution of an action, or prevent the execution of an action before it is executed. At the same time, it also provides a way to extract the r ...

git and GitHub notes 1,git 1.1 version control At present, the most popular is distributed version control system The server saves all updated versions of the fileThe client is a full backup of the server, not just the latest version of the file A little = > Network operation, support multi person collaborative developmentAfter the cli ...

C + + container Basic Usage Gets the length of the container Before, we often used sizeof() to obtain the length of the array: int data[17]; size_t data_size = sizeof(data)/sizeof(data[0]); printf("Size of array: %zu",data_size); However, using the size() method of the container can obtain the data length more conveniently: std::arr ...

preface This time, let's try 2048. Those who don't know can play it by themselves. It won't be launched here. We still use pygame, because we have had several pygame projects before. This time, I'm going to hurry up and mainly talk about the logic part. Interface construction The pygame call in this part will pass by. If you don't know the p ...

The difference between docker save and docker export origin   Both docker save and docker export can export image packages. At first glance, there seems to be little difference. Aiming at this problem, this paper tries to find out what the functions of docker save and docker export are? What application scenarios are applicable? *Note: user ...

1. resso, React state management has never been so simpleresso is a new React state manager. Its purpose is to provide the simplest way to use it in the world.At the same time, resso also realizes on-demand update. If the data not used by the component changes, the component update will never be triggered.GitHub: https://github.com/nanxiaobei/r ...

Application of RabbitMQ in practical projects Business scenario explain: For some reasons, the specific business is not explained. The general business scenario is that module A will send A message to module B, and module B will update the local cache encache And module B is A cluster deployment in the project. Switch selection: 1. fa ...

MongoDB 1, windows installation 1. Download from the official website MongoDB The default is the latest version installed. I compare Buddhism and just use it for learning. I feel it doesn't make much difference, so I choose the default method. The windows version downloads msi files, which is the default visual installation interface. As ...

ECMAScript 6 Introduction ECMAScript 6.0 (ES6 for short) is the next generation standard of JavaScript language, which has been officially released in June 2015. Its goal is to make JavaScript language can be used to write complex large-scale applications and become an enterprise development language. Over the past few years, the latest ...

summary Reflection is one of the features of Java programming language. It allows running Java programs to check themselves, or "self-examination", also known as "introspection". Reflection is so powerful that it can even directly manipulate the private properties of the program. We all have a concept in the previous study. ...