Tag:Bookkeeping

  • MySQL log system redo log, binlog

    Time:2021-7-15

    What is redo log Redo log (redo log), a metaphor can be used to describe, that is, the hotel manager has a pink board, which is used to record customers’ credit records. If there are not many people on credit, he can write it on the pink board. If there are many people on credit, […]

  • Why is dpos not easy to cause bifurcation?

    Time:2021-4-18

    A lot of times, we can always hear the term “hard fork”, which makes people turn pale. However, after bitcoin and Ethereum have experienced a certain number of forks, it does not absolutely affect people’s pursuit of these two mainstream digital currencies. However, not all digital currencies will bifurcate, and even some currencies will hardly […]

  • Detailed explanation of blockchain — from essence to implementation principle

    Time:2020-11-18

    With the rapid rise of digital currencies such as bitcoin and Ethereum, the underlying technology of digital currency, blockchain technology, has begun to enter the public’s view. Yao Jinbo said: blockchain may be as great as the Internet. What are the advantages of blockchain technology over traditional Internet technology? What is its implementation principle? I […]

  • The bookkeeping book of springboot

    Time:2020-11-13

    The bookkeeping book of springboot Yesterday, I read Rego’s tutorial and wrote a simple bookkeeping book to practice. I didn’t put my notes down on my blog. I made it up today. Let’s get to the point. As the old rule, let’s take a look at the directory structure of the project and the login […]

  • Docker basic operation guide

    Time:2020-9-20

    Docker basic operation guide Pull the basic image: docker pull centos:latest Run a container called base CentOS against the underlying CentOS image docker run –name base-centos -d centos:latest Copy the local JDK to the container docker cp /home/kxvz/jdk-8u201-linux-x64.rpm base-centos:/opt View all containers docker ps -a View all running containers docker ps Stopped containers docker stop […]

  • A simple encryption tool, performance seems to be poor, to be optimized

    Time:2020-9-19

    A simple encryption tool, performance seems to be poor, to be optimized package com.kxvz.common.crypt; import javax.crypto.Cipher; import javax.crypto.KeyGenerator; import javax.crypto.SecretKey; import java.io.ByteArrayOutputStream; import java.security.SecureRandom; import java.util.ArrayList; import java.util.List; import java.util.Random; import java.util.zip.Deflater; import java.util.zip.Inflater; public class Xe { private static final String HEX_NORMAL = “0123456789abcdef”; private static final String HEX_TMP = “0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ”; private static final […]

  • Go language series family income and expenditure accounting software project

    Time:2020-8-12

    Item 1 – software project of household income and expenditure accounting Project development process description Project requirement description Simulation of home accounting software based on text interface The software can record the family’s income and expenditure, and print the income and expenditure statement Project interface ———————Family income and expenditure accounting software——————— 1. Revenue and expenditure […]

  • RPA + automation tools

    Time:2020-8-7

    On September 16, 51rpa editor shared the article “RPA’s technical expertise”. It was mentioned in the article that in order to be truly independent and write optimized, robust, safe, general and easy to maintain code, RPA developers need to have certain development experience, and professional people are the right way to do professional things. Share […]

  • Status quo, concept and characteristics of blockchain Technology

    Time:2020-7-20

    In fact, the technical status of blockchain is mainly that with the growth of its transaction volume and application, network congestion will occur. However, the existing bottom layer of blockchain is still in the primary development stage, there are many technical bottlenecks, DAPP landing will be very difficult, and TPS will become the bottleneck problem.The […]