Front end watermark generation scheme

The content of the system was leaked outside the audit time, but the security screenshot of the background audit personnel was not particularly sensitive. Therefore, a watermark is added on the system page, which has a certain prompt function for sensitive operations such as screenshots of auditors. Web watermark generation solution Generate w ...

Posted by Tyco on Wed, 25 May 2022 12:17:07 +0300

Version control gitlab

1. Introduction to version control Version control refers to the management of changes in various program codes, configuration files and description documents in the software development process. It is one of the core ideas of software configuration management. The most important function of version control is to track file changes. It faith ...

Posted by jvrothjr on Wed, 25 May 2022 12:11:11 +0300

Good Java skills (summary of 7 years of working experience)

Since graduation in 2013, this year has been my seventh year of work. I am always doing Java related work. Finally, I have time to sit down and write an article on Java writing to discuss. If you are really a java programmer, can you really write Java? This article is not a boastful article. It will not talk about many advanced architectures. O ...

Posted by Zeceer on Wed, 25 May 2022 12:03:47 +0300

[Tools] 001-CentOS7 Minimal Installation Configuration

write in front I'm lazy, and don't want to knock one command after another. . . "Laziness is premised, not before or after. " Briefly CentOS 7 minimal installation version: CentOS-7-x86_64-Minimal-1708 Basic configuration Configure the network VM select bridge Manually configure the network address Verify that you can access the exter ...

Posted by horsefaceba on Wed, 25 May 2022 12:02:07 +0300

Linux Query Manual

There is a Linux command repository on github, Click to visit or click here make an inquiry The following are the common commands that I have collected in my daily use content 1. Unzip 7z bz2 zip 2. Number of statistical files 3. After modifying the .bahsrc file, remember to use source to update the system variables 4. The bash file writt ...

Posted by daneth1712 on Wed, 25 May 2022 11:56:41 +0300

[JLOI2013] terrain generation

A classic method of permutation and counting is to insert elements into the sequence in a certain order. It is not difficult to find the first question of this question. In order to know how many in front of each position are larger than the current position, we can consider inserting mountains into the sequence from large to small according to ...

Posted by Rhysyngsun on Wed, 25 May 2022 11:53:57 +0300

Principle and implementation of thread pool

$1. General Background of thread pool: high concurrency projects often need to enable a large number of threads at the same time, so a large number of threads need to be created. Frequent creation of new threads and killing of old threads will greatly slow down the performance of CPU. Therefore, use the thread pool to initialize several threads ...

Posted by slibob on Wed, 25 May 2022 11:51:41 +0300

Simple while loop exercise (python)

Record simple while loop exercises Topic 1: Use the while loop to output 1 2 3 4 5 6 8 9 10 count = 0 while count < 10: count+=1 if(count != 7): ‚Äč print(count) Problem solving ideas: This question is relatively simple, that is, print the number of 1-10 except 7 Let's make it a little simpler and print out 1-10 in a cycle count ...

Posted by veryconscious on Wed, 25 May 2022 11:47:58 +0300

[graph coloring problem] detailed optimization

Graph coloring problem [1] Given undirected connected graphs, G and m have different colors. These colors are used to color the vertices of graph G, and each vertex has a color. Is there a shading method that makes the 2 vertices of each edge in G have different colors. [2] If a graph needs at least m colors to make the two vertices connected b ...

Posted by peeps on Wed, 25 May 2022 11:38:54 +0300

Understanding of virtual DOM in Vue

Understanding of virtual DOM in Vue Virtual DOM is a tree based on JavaScript objects. Each node is called VNode, and the node is described by object attributes. In fact, it is an abstraction of the real DOM. Finally, the tree can be mapped to the real DOM through rendering operations. In a real environment, Virtual DOM is simply a Js object th ...

Posted by yeldarb on Wed, 25 May 2022 11:19:55 +0300