Programmer Group

I haven't been blogging for a long time. Because it's so konjaku. What can I do with this konjaku Today, I finally met a template problem (before that, but it's too konjak) But... Write code for 5 minutes, debug for 2 hours. Dividing line: returning to the main topic This is the common Hungarian algorithm. Almost. How to do this problem? 1: L ...

First, define the QR code container on the front-end page to store the generated QR code in the background (the following is corresponding to the three logo icons in the above figure, which are put here to let you see more clearly!) <ul> <li><img src="/static/Images/HitArea/logo-sina.png" alt="">&lt ...

Blog Outline: I. deploy weave scope II. Start configuration 1. Run Node Server container 2. Run the C advisor container 3. Run Prometheus server container on docker01 4. Run the grafana container on docker01 5. Set Prometheus alarm Prometheus is a system and service monitoring system. It collects metrics from configured targets at a giv ...

The problem is that I can send httpclient request with eclipse as follows. But I will return 400 in idea. Why not??? excuse me? package com.vol.timingTasks; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.auth.AuthScope; import org.apache.http.auth.Us ...

brief introduction Objective to help oneself understand webrtc to realize end-to-end communication # Usage flow git clone https://gitee.com/wjj0720/webrtc.git cd ./webRTC npm i npm run dev # Visit 127.0.0.1:3003/test-1.html to demonstrate h5 media stream capture # Visit 127.0.0.1:3003/local.html to demonstrate rtc local transmis ...

Introduction to the Framework Newspaper is a python 3 library, but Newspaper framework is not suitable for practical engineering news information crawling. The framework is unstable and there will be various bug s in the crawling process, such as inaccessible url, news information, etc. But for friends who want to obtain some news corpus, it i ...

This article focuses on the use of regular expressions in shell scripts. Summary Regular expressions are divided into basic Regular Expression and Extended Regular Expression. It is not a tool program, but a standard basis for string processing. It uses a single string to search and match a series of strings that conform to a certain grammati ...

Preface Through the combination of HTML5 and OpenLayers, a very good application of telecommunication map network topology can be formed. The result can be used as a telecommunication resource management system, food location sharing software, area room search, railway line drawing and so on. It is an application that can be involved in all fi ...

Preface Charts are often used for data analysis in projects. There are many excellent open source galleries for charts on gitHub. Today, we share the bar charts in MPAndroid Chart. A brief introduction to MPAndroid Chart: It can realize the drag of charts, 3D, partial view, dynamic display of data and other functions. Official source address: ...

Front-end JS Judgment Browser Now there are many browsers on the market, such as 360, QQ, Sogou and so on. But most of them are based on several existing browser kernels for secondary development. How many kernels are there in the end? 1. Trident Kernel (IE Kernel) 2. Gecko Kernel (FireFox Kernel) 3. ...