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https://blog.csdn.net/u011728480/article/details/78588827 #PS: if you want to reprint, please indicate the source. I own the copyright #PS: This is only "myself" understand, if with your #If the principles conflict, please understand and don't spray Introduction to EC20 EC20 is a 4G module of all Netcom, and provides detailed d ...

Recently, when using Spring event framework to write business development, due to the functional limitations of Spring event framework, it can not well meet our development needs. Therefore, after reading the Spring event source code, the Spring event framework has been expanded. The process will be described in detail below. Problem Descripti ...

Original address: https://circuitdigest.com/microcontroller-projects/arduino-solar-panel-tracker Use Arduino's solar tracking solar panels ARDUINO Pass by** Muhammad Aqib **January 12, 2017 25 Arduino based Sun Tracking Solar Panel project using LDR and servo motor In this paper, we will use Arduino to make a solar tracking solar panel, in ...

3. Control node Keystone authentication service component More steps: OpenStack Victoria installation and deployment series tutorials OpenStack deployment series Openstack deployment tutorial series OpenStack Ussuri offline installation and deployment series tutorial (full) OpenStack Train offline installation and deployment series tu ...

Give you an integer array nums, with a sliding window of size k moving from the leftmost side of the array to the rightmost side of the array. You can only see k numbers in the sliding window. The sliding window moves only one bit to the right at a time. Returns the maximum value in the sliding window https://leetcode-cn.com/problems/sliding-w ...

1. Carelessness pwd = input('Please input a password:') if pwd == '520666' print('correct') This is the code to verify the user password. If you put it into operation, the following error will be reported. Find the error in this code and modify the code to make it run successfully: pwd = input('Please input a password:') if pwd == '5 ...

1, Install PostgreSQL database on the server 1. yum command installation: Select the system, Version (the version I selected is 12) and so on here. I use the yum command to install here. My command here is: yum install https://download.postgresql.org/pub/repos/yum/reporpms/EL-6-x86_64/pgdg-redhat-repo-latest.noarch.rpm yum install postgresql ...

Author: Tangyuan Personal blog: javalover cc preface Shopping rebate https://m.cpa5.cn/ Hello, I'm tangyuan. Today I bring you automatic code generation in SpringBoot - based on mybatis plus. I hope it will be helpful to you. Thank you The article is purely original, and personal summary will inevitably make mistakes. If so, please reply ...

I preface This article introduces the main process of SpringBoot Application The main process entry of spring application is very simple: @SpringBootApplication public class BaseApplication { public static void main(String[] args) { SpringApplication.run(BaseApplication.class, args); } } 1 > use @SpringBootApplication Not ...

AJAX learning notes 1 what is AJAX? AJAX = asynchronous JavaScript and XML AJAX is a technology for creating fast dynamic web pages. A small amount of data can be exchanged asynchronously with the AJAX server in the background. You can update a part of a web page without reloading the whole web page. Traditional web pages (without AJAX) must ...