saltstack - Automated Operations and Maintenance Layout Tool
brief introduction
Salt is an underlying plat...
Pooling Technology for Java Data Persistence Series
In the last article Java Data Persistence Series JDBC In, we learned that creating a Connection using JDBC executes the ...
50 Linux Basic Operations Commands Must Be Mastered
Explain:
Based on the author's usage in peacetime and som...
Network engineer's Python practice
When there are more and more devices in the network, and with the advent of automation, we should consider using automat...
Install geent4 software developed by CERN on Ubuntu 18.04
Installing Geant4 on Ubuntu 18.04
GEANT 4 is ...
Hands on interface for external security (improvement)
Article directory Last blog Preface show you the code get processing method post processing method Reference blog ...
MapReduce program practice advanced of Hadoop cluster big data solution (custom partition&sort&group)
Get ready                   &...
1python how to find all permutations of a string
Title Description:
Design a program that requires all pe...
Docker and docker compose deployment
1. Docker deployment 1.1 mode 1: Download software source wget -O /etc/yum.repos.d/docker-ce.repo https://mirrors.ustc.e...
Java collection source code analysis of LinkedList based on JDK 1.8
In the last part, we analyzed the underlying implementation of ArrayList, and learned that the underlying implementation...
Getting started with dubbo (zookeeper is the registry)
1, To build a zookeeper in the registry, first download the zookeeper package
...
JavaScript self study notes: using JS to realize floating window of web page
Recently, I made a small project to add a floating window to the web page, which tested the basic CSS and JS technology....
Machine learning practice -- naive Bayes method (code explanation)
Machine learning practice -- naive Bayes method
...
kubeadm deployment k8s cluster
Experimental environment:master node: 192.168.1.10 (master)Node 1: 192.168.1.20 (node01)Node2 node: 192.168.1.30 (node02...
How to make the corner circle of the button?
I want to round the corner of the button. Is there an easy way to do this in Android?
...
COW (Copy On Write) in GCC
Article directory What is COW? Copy Elision Realization Possible implementation The implementation of libstdc + + What's the problem? What is th...
PX4 reads the message sent by STM32F4 serial port through serial port and publishes the UORB topic
PX4 reads the message sent by STM32F4 serial port through serial port and publishes the UORB topic This small project is to read the data sent by STM...
Tian Xiaohua Speech Robot is based on Python and implemented through Baidu API voice control stm32 single-chip computer light system
All code for this project has been uploaded to CSDN. Overview of system functions and features: Hardware: 1. Run speech recognition on your computer ...
golang unit testing and performance analysis
Here's a brief introduction to how go writes unit tests, performance analysis of code, and code coverage. Usually we have written some methods, ...
PHP tripartite management tool composer
Composer installation Download and install composer (terminal command) ~$ curl -sS https://getcomposer.org/installer | php or ~$ php -r "readfil...
oracle dynamic (Reference) cursor
1. classification: Static cursors: explicit cursors and implicit cursors are called static cursors because before they are used, the definition of cu...
Mysql multi instance configuration
Multi instance configuration of MySQL In a physical machine, multiple test environments are needed, so multiple instances of building database are nee...
jQuery -- small rocket back to top case
Small rocket back to top case 1. Scroll the page. When the distance between the page and the top exceeds 1000px, the small rocket will be displayed. E...
Performance comparison of mysql batch operation
1, When operating the database, using the prepared statement will greatly improve the performance advantages of operating the database as follows: 1)...
mysql user management and permission setting under centos7
1.Get into mysql Command line, entering root And password [root@localhost ~]# mysql -u root -p Enter password: Welcome to the MySQL monitor. Commands...
[Python 3 reptile] short comment on Douban's I'm not the God of Medicine
Tools: Python3+Pycharm+Chrome Modules used: (1) Requests: for simple data requests. (2) lxml: faster and stronger parsing library than BeautiSoup. (3)...
Oracle EBS file upload and download (I) - call standard API function
Business background An article published before me< Oracle EBS uses CSV to import Oracle Form and BOM import API >When it comes to uploading im...
[Python] Python game--Airplane battle
1. Preface Today is the fourth day of the lunar new year. The Spring Festival when we are comfortable lying down at home is over. We are also startin...
Project 4 product purchase
1: Merchant background - commodity management [commodity list] (in the merchant background, display the commodity list information of the merchant) T...