"Java tool class" BeanCopyUtil object replication tool class
Introduction
This number is mainly the sharing of common key technology points and common tool classes of Java; And technology sharing of integration frameworks such as springboot+springcloud+Mybatisplus+druid+mysql+redis+swagger+maven+docker; Technology sharing of big data processing frameworks such as datax, kafka and flink. The article will ...
Posted by xuelun on Sun, 31 Oct 2021 03:53:10 -0700
allure plug-in novice demo
allure is a plug-in that can generate visual test reports. It has the following characteristics:
allure is a lightweight, flexible and multilingual test reporting tool
Multi platform and luxurious report framework;
Can be dev/qa Provide detailed test report, test steps and log;
It can also provide high-level statistical reports for the ...
Posted by asherinho on Sun, 31 Oct 2021 03:52:40 -0700
Database security -- a brief analysis of SQLMap source code
directory structure
Let's sort out the directory structure: here is the latest version of sqlmap 1.4.3.12 I downloaded 1. The data directory contains graphical interface templates that can be built, shell back door (the code inside is encrypted), udf rights lifting function, database injection detection load, etc 2.doc directory is the instr ...
Posted by Zmodem on Sun, 31 Oct 2021 03:51:36 -0700
python Basics - if, while, for loop exercise 2021-10-31
1, Simple arithmetic practice
1: Input two variables on the console and exchange the values of these two variables [complete with XOR]
#The console inputs two variables and exchanges the values of the two variables
#[complete with XOR]
print("Please enter a,b Value of: ")
a = int(input("Please enter a Value of"))
b = int(input("Please enter b ...
Posted by sevenupcan on Sun, 31 Oct 2021 03:51:09 -0700
PTA queue exercise
choice question
2-1 the condition that the circular queue with less one element space (m is the maximum queue length) is full (). A.rear== front B.(rear+1)%m==front C.(rear+1) == front D.front ==(front+1)%m
2-2 the cyclic queue is stored in array A[0... n-1], and its head and tail pointers are f and R respectively. The head pointer f always p ...
Posted by flOid on Sun, 31 Oct 2021 03:45:39 -0700
Huawei 1+x network communication and maintenance
Huawei 1+x network communication and maintenance
1, Experimental topology
2, VLAN information
3, ip information
4, Equipment naming
In order to facilitate the later maintenance, fault location and network standardization, it is necessary to name the network equipment. Please name the device according to Figure 3-1 experimental test t ...
Posted by GSHelpBoy on Sun, 31 Oct 2021 03:34:47 -0700
sheng's learning notes - Design Pattern - Visitor pattern and dual distribution
schematic diagram:
In real life, some collection objects have many different elements, and each element also has many different visitors and processing methods. For example, there are multiple scenic spots and multiple tourists in the park. Different tourists may have different comments on the same scenic spot; The prescription list issue ...
Posted by syamswaroop on Sun, 31 Oct 2021 03:32:48 -0700
Explanation and implementation of genetic algorithm (python)
introduction
In my opinion, genetic algorithm is an algorithm that can be considered when adjusting parameters. It is a method that can find the global optimal parameters. When the data range that needs to be adjusted is large, the exhaustive method is obviously not a good choice! Here, the genetic algorithm is implemented through a simple exa ...
Posted by Catz on Sun, 31 Oct 2021 03:22:08 -0700
Watermelon decision tree ID3 algorithm
ID3 decision tree algorithm
background knowledge
ID3 algorithm was first proposed by J. Ross Quinlan at the University of Sydney in 1975. The core of the algorithm is "information entropy". By calculating the information gain of each attribute, ID3 algorithm considers that the attribute with high information gain is a good attr ...
Posted by apervizi on Sun, 31 Oct 2021 03:13:31 -0700
PWM adjust LED brightness
Development board: Wildfire domineering V1 Chip: stm32f103ZET6 Timer: TIM3 Output channel: CH3 GPIO: PB0
frequency
F = 72M / ((ARR+1)*(PSC+1))
Unit: Hz
Duty cycle
Duty_Cycle = (TIMx->CCRx) / ARR
Unit:%
The following test is to observe the brightness change of LED small lamp by adjusting PWM duty cycle
Circuit
Output comparis ...
Posted by praxedis on Sun, 31 Oct 2021 03:09:02 -0700