Ethereum DAPP[4] - ××× - foreground display interface
Front page display In the following display, it shows the address of the manager, the number of current participants, the current fund pool, the play...
Echo server C + + 4-UDP connect version
Calling the connect function for a UDP socket does not establish a connection with the UDP socket of the other party, but registers the destination IP...
Webpack learning - how it works
Following the last chapter Article This paper introduces the basic concept of webpack, the whole process, and the function of some events broadcast in...
Python basic exercises
1. Number of printing 1-100 for i in range(1, 101): print(i) 2. Print the sum of 1 + 2 +.. 100 num = 1 sum = 0 while num < 101: sum += num num += 1...
[drain pit] Ftp normally connects to the server but cannot get the file
Some codes in ftp tool class ftp util are as follows: import org.apache.commons.net.ftp.*; public class FtpUtil { private static Logger log = Logger.g...
Talk about registerConsumer and unregisterConsumer of rocketmq
order This paper mainly studies the registerConsumer and unregisterConsumer of rocketmq. MQClientInstance rocketmq-client-4.5.2-sources.jar!/org/apach...
Arrays in Scala
1. Introduction to array There are two kinds of arrays in scala: fixed length array and variable length array. fixed length Array: because Array is i...
JFreeChart drawing + jsp page display implementation statistics
1 development environment: 1. eclipse (replaceable) 2,jfreechart-1.0.19 2 Description: (1) source directory: it's the source directory of jfreech...
Encapsulate the table component of element UI, and flexibly configure the header to realize the functions of table editing, button, link, etc.
vue-bxz-table 1. Encapsulate the table component of element UI: Define table height full screen Add foreground paging function. Customize the header a...
Complete set of installation documents and small skills of Docker related environment
The following environments are Ubuntu 16.04, which mainly install docker, docker compose, docker warehouse, etc. Docker installation Reference resourc...
fdisk and parted partition
There are two types of linux partitions I contact: one is using fdisk partition, and the other is parted partition. The former is for MBR mode partiti...
Install Oracle11gR2-11.2.0.4 database silently on oraclelinux 7.6
I. prepare the responseFile file 1. For environment deployment, please refer to the blog: 2. Active and standby responseFile files, and obtain file t...
JavaScript series blog
JavaScript series blog (5) Preface This blog study js selector to control css and html, use event (hook function) to handle the specified function aft...
mac[linux] uses lsyncd to synchronize multiple files of two machines in real time
What is Lsyncd? Lsyncd is a lightweight real-time file backup solution, which is very easy to install and use. It can be used to synchronize files bet...
Simple React SSR
0. Preface Server-side rendering is not just needed in the project, but sometimes a server-side rendering is also needed. There are many advantages f...
Weather forecast microservice: build spring cloud microservice from 0
As usual Project github link This project realizes the process of transforming a simple weather forecast system into a spring cloud microservice syste...
Why Python 3 chooses to support non ASCII identifiers
The original text is: PEP 3131 -- Supporting Non-ASCII Identifiers. Python 2 does not support non ASCII identifiers. The full name of PEP is Python En...
From the 25th day to the 27th day, the countdown begins to tick
Code Now we need to make a slightly complicated thing, as follows: HTML. There is a pile of Select to Select the date and time. After selection, the d...
FFmpeg code to extract audio and video data
Today, we begin to roll up the code. First, we use the FFmpeg API to extract the audio data of an MP4 file. IDE It should be the first time to do C/C...
Custom plug-in of vertical waterfall flow based on jquery
The company's new project has made a plate about pictures. It found some waterfall plug-ins on the Internet that are not very suitable for itself...
Introduction to Scala basic syntax
1. Definition of variables Note: there is no concept of static in scala. All methods and properties in the class decorated by the keyword object are ...
shell training camp Day29
Exercise 86In CentOS 6 system, we can use ntsysv to shut down the services that do not need to be started, of course, we can also use chkconfig tool ...
What are the similarities between Python and JS?
Python is a widely used language. It can automate scripts, crawlers, and even in the field of deep learning. As a front-end developer, I also know tha...
Navicat tool and pymysql module of mysql
1. Introduction to ide tools (Navicat) In order to facilitate the test, use the IDE tool, Navicat, which is essentially a socket client, a visual tool...
demo based on UDP sending messages to each other
I. demo function and significance This demo is mainly to demonstrate the application mode based on UDP protocol. It consists of two sections of code:...
Using cxf to write the next part of spring based Web Service
Copyright notice: This is the original article of the blogger. It can't be reproduced without the permission of the blogger. https://blog.csdn.n...
Record a string compression operation
There is a scenario in the project: a batch of data needs to be sent to the APP side, and in the actual application scenario, there is a certain limit...
Interaction between web and APP -- WebView JavaScript Bridge
In the actual project, we often encounter the situation that the web page is embedded in the app (Hybrid), which requires the interaction between the ...
Length of JavaScript object
I have a JavaScript object. Is there a built-in or recognized best practice to get the length of this object? const myObject = new Object(); myObject...
The use of polar verification in vue project
The projects using vue and react to obtain data, upload data, register and log in are all completed through interfaces, which are easy to be called ma...