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Probability of random number controlled by Js
Such as: Take the random number between 1 and 10, then their value range is: integer Section probability 1 [0,1) 0.1 2 [1,2) 0.1 3 [2,3) 0.1 4 [3,4) 0...
python multithreading and multiprocessing: ping scanning and stock price crawling of surviving hosts
python multithreading and multiprocessing Multithreading: Case: scan the surviving hosts in a given network (test by ping, if there is a response, it ...
Rest Framework: IV. authentication component
I. create LoginAuth class to complete the authentication process urls.py url(r'^login/', views.Login.as_view()), url(r'^books/', ...
Spring MVC conceptual model -- HandlerMapping: request / processor mapping
Summary Spring MVC interface HandlerMapping is used to abstract modeling concepts: mapping between request and handler. The interface can be implemen...
Python draws a beautiful cherry tree (different kinds of cherry + Rose + Christmas tree)
There are many tree diagrams drawn in Python (most of them are turnle libraries), which is very beautiful. I sorted them out and selected some code th...
Kubernetes deployment: CA certificate production
Make CA certificate manually 1. Install CFSSL [root@node-01 ~]# cd /usr/local/src [root@node-01 src]# wget https://pkg.cfssl.org/R1.2/cfssl_linux-amd...
The implementation of editable table by iView
create at: 2019-02-20 assembly <i-table highlight-row ref="currentRowTable" :columns="columns" :data="tableData">&...
Character set scrambling in mysql
#View the character set of mysql database mysql> show variables like "%character%"; +--------------------------+------------------------...
The use of sync.WaitGroup in collaboration
Scenarios used: When several goroutine s are running at the same time, you need to wait for these processes to complete before doing other operations ...
Java code generator
Full automatic code generator Project address https://github.com/GitHub-Laziji/mybatis-generator The code template is located under resources and can ...
Webback4. X configuration of vue project
These two days, I played with webback and lay in a lot of holes. Today, I read a blogger's article to solve this problem. He explains each part o...
Dictionary and hash table to implement Redis source code
Through the study of "Redis design and implementation", I intend to implement a "Redis source code" as my own learning record. Stu...
Encapsulate a super simple vue sharing component
Update: from May 2018, jithis will turn off sharing function. Please use http://sharesdk.mob.com/ Or search other social sharing Libraries When devel...
Linux -- directory basic operation
cp copy files or directories Usage: cp [OPTION] SOURCE source file DIRECTORY target file. For details, see man cp Take common parameters for example [...
Java - how to write multithreaded programs?
Share a Daniel's AI tutorial. Zero basis! Easy to understand! Funny and humorous! I hope you can join the team of artificial intelligence! Pleas...
Support jsp+html jump in the whole contract of springboot 2.0
Spring boot project creation tutorial https://blog.csdn.net/q18771811872/article/details/88126835 springboot2.0 jump to html tutorial https://blog.csd...
org.springframework.web.multipart.MaxUploadSizeExceededException
The company assigned me a task to do the second phase development of a project. After taking over from other project teams, the test files are upload...
A week fast self-study java Programming Advanced Language dry goods note cycle structure grammar
Cyclic structure grammar One of the process control statements in which the loop is difficult (turning). 1. Master the while cycle structure //When: ...
On the interceptor of login request of vue axios
When we are making interface requests, such as when we judge the login timeout, it is usually the interface returns a specific error code. If we judge...
It seems that it is not the most complete array de duplication method
In this article, we will talk about array de duplication. 1. The simplest and rudest way, double for loop let arr = [9, 5, 6, 5, '1', '...
Analysis of processOptions processing Options and entry function of Web pack source code
Let's open bin/cli.jsAccording to the Options returned last time processOptions(options)This is easier to read because of the foundation of the l...
Using the Gin framework to build a simple login background (Go language)
I. Introduction to Gin framework Framework has always been a sharp tool in agile development, which enables developers to quickly start and make appl...
CAS 5.2.6 single point login user defined login verification and registration process in subsystem
Cas Server configuration Create a src/main/resources folder, find the file in the WEB-INF of cas, then modify the html file page, and add a new butto...
20 regular expressions!
Verification basic date format: var reg = /^(\\d)(-|\\/)(\\d)\\2(\\d)$/; var r = fieldValue.match(reg); if (r==null) { alert('Date format error!...
Three ways to implement python multithreading concurrent processing
Tag: python's spoof technique Optimal number of threads Ncpu = number of CPUs Ucpu = target CPU usage W/C = ratio of waiting time to calculation ...
Spring Boot from entry to mastery - project construction
Spring Boot greatly simplifies the development of Java projects. If you want to develop a java project before, you need to install tomcat or other co...
ASP.NET MVC -- custom Filter
Introduction: filter is the judgment before or after the controller method. This paper mainly introduces the custom filter 1. Filter classification ①...
Causes and consequences of inode occupation
0. Problem description phenomenon After receiving the pin alarm, online Solr server / var partition inode is full. Influence /The var partition can no...
Delete folders larger than specified size on Linux at regular intervals
Background: There is no room for the development environment to move around, mostly debug logs.So it's necessary to delete unnecessary logs when ...
The implementation of registration function in Java Web
Implementation of registration function Experimental steps 1. Create the database mydb with the character code of utf-8. 2. Create a tb_user table in...