Programmer Think

Git notes tutorial (contents of chapters 1 to 4 of this article) My first blog, a rookie (student), I hope the big guys will give me some advice. Chapter 1 initial of git 1.1 what is git? git is a distributed version control system, which is simply understood as version superposition, as shown in the following figure We are developing ...

1. Why integrate Nacos By default, Sentinel configuration rules are stored in memory. After the Sentinel service is re configured, the configuration will show that we realize the persistence of the configuration by integrating third-party middleware, such as using Nacos; To realize the bidirectional synchronous persistence of Sentinel and ...

Docker container -- create a custom jdk1 8 mirroringbackgroundDuring our daily development, we will encounter all kinds of strange problems (stepping on the pit o(╯□ ╯ system) o). This common problem series is the record article series of some problems I encounter every day. Here, we will sort it out and share it with you, so that their little ...

HTML coding specification 1 Preface 2 code style Indent and wrap 1.2 2.2 naming 2.3 labels 2.4 properties 3 general 3.1 DOCTYPE 3.2 coding 3.3 introduction of CSS and JavaScript 4 head 4.1 title 4.2 favicon 4.3 viewport 5 pictures 6 form 6.1 control title 6.2 buttons 6.3 accessibility (A11Y) 7 multimedia 8 HTML in template ...

1. Polymorphism 1. What is polymorphism? (inheritance is the premise of polymorphism) Polymorphism refers to various forms in popular terms. Specifically, it refers to completing a certain behavior. When different objects complete it, different forms will be produced. At the code level, each object of the subclass is also the object of th ...

Hello, everyone. I'm safe and sound. Each Preface Blog home page: Safe and sound Author introduction: 2021 blog star Top2 Our slogan: 🌹 Little bit, big dream 🌹 Author's request: due to the limited level of bloggers, it is inevitable that there will be mistakes and inaccuracies. I am also very eager to know ...

python iterative non numeric sequence can be iterated by sequence index, and range and len are used together. #Using sequence index to iterate, you can use range () and len() together Array=['I','have','a','nice','hobby'] for i in range(len(Array)): print(i,Array[i]) In addition, you can also use enumerate() to implement it. Enumerate() ...

[this article is the author's final course design assignment, so it is long. The author's programming ability is weak, and many codes need to be improved. For the first time, I hope you can forgive me and forgive me; those who have optimization opinions are welcome to share with you in the comment area! I hope this article can help students in ...

Notification manager The NotificationManager class is a notification manager. This object is a service maintained by the system and is obtained in the form of singleton mode, so it is generally not instantiated directly. In Activity, you can use Activity Getsystemservice (string) method to get the notification manager object, Activity Gets ...

Algorithm is really wonderful. It's easy to be addicted after learning. Of course, it's said on a simple premise. If I encounter that kind of problem, I also have a headache. Today's plot is still the form of dialogue between teachers and students. In this way, I think it is more gradual and less abrupt. What do you think? Now, students, let' ...