Python face recognition (GUI interface) -- Based on pyopencv
Daily sentence: Shine silently, and then amaze everyone!!!
preface:
This project was written by the author before the end of the summer vacation. Because of the opening of school and other problems, this project has been put aside. With the author's need to transform Java, there may not be many projects to write python in the future. Thi ...
Posted by kristen on Sat, 04 Dec 2021 18:44:54 -0800
Introduction to ACM [read in and output optimization]
This article is mainly a summary based on oiwiki, and will do a series of related articles in the future. If you want to continue reading, you can follow the column. The purpose of this column is to lay a foundation for my recent systematic. So I want to write a column for beginners who like ACM.
Why read in and output optimization
In f ...
Posted by ugriffin on Sat, 04 Dec 2021 18:18:09 -0800
Ceph automation four kings
Every Ceph novice has been more or less beaten by the four heavenly (PIT) kings mentioned in the article, or become a great God, or delete the library and run away and become a ghost. Therefore, it is necessary to popularize the means of these four heavenly kings early to help you get rid of the sea of suffering early. This article is based on ...
Posted by robviperx on Sat, 04 Dec 2021 18:14:46 -0800
Python crawler actual combat, pyecharts module, python data analysis tells you which goods are popular on free fish~
preface
Python automation is used to obtain the best selling goods of a certain kind for reference. No more nonsense.
Let's start happily~
development tool
Python version: 3.6.4
Related modules:
Pyecarts module;
And some Python built-in modules.
Environment construction
Install Python and add it to the environment variable. pip can ins ...
Posted by Aptana on Sat, 04 Dec 2021 17:52:28 -0800
Native JS implementation of rotation map
Native JS implementation of rotation map
Because I always feel that things to be completed with the help of plug-ins always feel dependent on others. If I can't rely on them one day, I can't stand up anymore. So I don't want to do it with jQureey. I also saw JS given by many experienced bosses. Generally speaking, it can be realized, but if I c ...
Posted by Stray_Bullet on Sat, 04 Dec 2021 17:43:05 -0800
JAVA - employment case ② (WEB comprehensive case)
target
Objective 1: be able to name three common paradigms of database design
Goal 2: be able to use PD tools for table structure design
Objective 3: complete the business development of discipline module
Objective 4: complete the business development of the directory module
Objective 5: complete the business development of the topic ...
Posted by AdamDowning on Sat, 04 Dec 2021 17:41:41 -0800
vue2.0 conditional rendering
Conditional rendering instruction
1.v-if and v-else2.v-show
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Vue conditi ...
Posted by todd2006 on Sat, 04 Dec 2021 17:37:15 -0800
Singleton mode notes
Hungry Han style
Initialize the object at the beginning. Whether it is used or not, this class allocates space, initializes the object, and points the object to space
Disadvantages: waste of space
public class HungerMan {
private HungerMan() {
}
private final static HungerMan hungerMan = new HungerMan();
private static Hunge ...
Posted by GrexP on Sat, 04 Dec 2021 17:35:35 -0800
05 SQL statement execution process analysis 2 - query logic optimization
sql execution statement flow analysis
The whole processing flow is in exec_simple_query function. The code structure is as follows:
/*
* exec_simple_query
*
* Execute a "simple Query" protocol message.
*/
static void
exec_simple_query(const char *query_string)
{
...
//Original syntax tree acquisition
/*
* Do basic parsing of the quer ...
Posted by scottlowe on Sat, 04 Dec 2021 17:11:50 -0800
Linux multiprocess programming three -- process communication
1, Process communication foundation
1. What is process communication
A process is an independent resource allocation unit. Resources between different processes (processes mentioned here usually refer to user processes) are independent and have no association. Resources of another process cannot be accessed directly in one process. However, pro ...
Posted by arsitek on Sat, 04 Dec 2021 16:39:28 -0800