Programmer Think

preface java selects 8u111 for reproduction According to ysoserial prompt, CC4 is required 0 version <!-- https://mvnrepository.com/artifact/org.apache.commons/commons-collections4 --> <dependency> <groupId>org.apache.commons</groupId> <artifactId>commons-collections4</artifactId> <vers ...

I feel that I haven't learned the part of the tree very well. PTA encountered this problem and didn't write it out at first. After writing it, I found that it's actually very simple. Record it. In fact, what I learned is the process of writing this question That is, if you modify a structure with typedef, you can't define the structure variab ...

Under a more detailed classification, there are three common types of greedy questions Greed is an idea that constantly selects the local optimal solution to achieve the global optimal solution. In other words, greed is constantly making the most favorable decisions for the present. It is unrealistic to classify all greedy problems in o ...

2022/3/9 1, Bootstrap (available in bootstrap Chinese document) 1. Concept: a framework for front-end development 1) framework: for semi-finished software, developers can develop it based on the framework to simplify coding 2) benefits:                 1. Many css styles and ks plug-ins have been defined ...

Authorization The above authentication process only confirms that both sides of the communication confirm that the other party is trusted and can communicate with each other. Authentication is to determine which resources the requestor has. API Server currently supports the following authorization policies (set through the startup parameter &q ...

Case description: For the cluster log of KingbaseES R3 cluster, the default system does not cut and clean up. With the increase of running time, the log will grow into a very large file, occupy a large disk space, and the efficiency is very low when analyzing problems and reading large files. Therefore, this case uses the Logrotate tool of Linu ...

This chapter mainly takes SMS Spam Collection data set as an example to introduce the identification technology of harassing SMS. This paper introduces the feature extraction methods used to identify harassing short messages, including word bag and TF-IDF model, vocabulary model, Word2Vec and Doc2Vec model, and introduces the models used and th ...

catalogue 1, Packaging of axios Set request timeout Setting of post request header Request interception Interception of response Encapsulate get method and post method The encapsulation of axios is basically completed. Let's briefly talk about the unified management of api. to update 1, Packaging of axios In the vue project, ...

C + + template Templates are the foundation of generic programming, which is to write code in a way independent of any specific type. 1. Function template float swap(float &a, float &b){float temp = a;a = b; b=temp;} char swap(char &a, char &b){char temp = a;a = b; b=temp;} Among the above three statements, int float ch ...

Unity Science Old rules, let's first introduce Unity's popular science knowledge: Unity is a real-time 3D interactive content creation and operation platform.All creators, including game development, art, architecture, automobile design and film and television, turn creativity into reality with Unity.Unity platform provides a complete set ...