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  Compared with other programming languages, Python has more diversified operation types. In particular, the asterisk (*), which is a widely used operator in Python, is not only used in the multiplication of two numbers. In this article, we will discuss the various uses of asterisks. The application scenarios of four kinds of asterisks are su ...

Introducing dependency Add io.springfox:springfox-swagger2 and io.springfox:springfox-swagger-ui dependencies to pom.xml <dependency> <groupId>io.springfox</groupId> <artifactId>springfox-swagger2</artifactId> <version>2.8.0</version> </dependency> <dependency> <groupId&gt ...

Introduction to Contracts Laravel's Contract Contracts are a set of interfaces and a specification for code implementation.The Laravel Framework Core Service provides many Contracts, such as IlluminateContracts\Logging\LoggingLogging, which defines the method required to log. The framework itself has corresponding implementations for Contracts, ...

1. Docker sets up Redis Master+Sentinel Monitoring Set up environment: Ubuntu 18.04.3 Docker 18.09.7 Download Mirrordocker pull redis (default redis:latest) Get the configuration file and modify it wget http://download.redis.io/redis-stable/redis.conf wget http://download.redis.io/redis-stable/sentinel.conf # Primary four slave port ...

I believe that a lot of readers know about = = and equals, and they know about = = and equals. In fact, it may be because there are too many blog articles and so on. After a period of baptism, they get lost. This article is clear again. Of course, if I think this article is too verbose, of course, I have taken it into consideration, because I d ...

TCP programming One of the main design goals of Go is to face the large-scale back-end service program. Network communication is the server, and the program is an indispensable and vital part Basic introduction of network programming There are two kinds of network programming Tcp socket programming is the mainstream of network programming. It i ...

Catalog File operation Input and output streams Open and close files Functions and methods used Case demonstration Read file operation application case Write file operation application case Judge whether the file exists Application example of file programming Copy file Count the number of English, numbers, spaces and other characters ...

Command execution in K8s is jointly completed by apiserver, kubelet, cri, docker and other components. The most complex is protocol switching and various stream copying. Let's take a look at the key implementation. Although there are many codes, they should be able to understand without development. Good luck 1. Basic concepts There are many pr ...

This article introduces the knowledge points related to object-oriented programming (encapsulation, polymorphism), learning together and making progress together For a Python column, see: Life is short - I learn python Article Directory 1. Packaging 2. Polymorphism Class and instance attributes 4. Static an ...

Multi engineering construction Maven realizes the combination of multiple modules by using modules. In Gradle, it can be realized by aggregating multiple project s. This article mainly introduces the specific usage. Multi engineering structure Create a three-tier structure as follows graph TD helloProject --> subProjectA helloProject ...