Qt Write Gas Security Management System 14-Mail Forwarding

1. Preface Mail forwarding function and SMS alert function are basically the same, they are triggered after judging the alert, which may be slightly different. Mail forwarding needs to rely on the Internet, and can send a large amount of data without the limitation of 60 characters of SMS (of course, SMS can split multiple sending, but it costs ...

Posted by mudasir on Fri, 22 Nov 2019 03:58:47 +0100

Union lookup Wireless Network

An earthquake takes place in Southeast Asia. The ACM (Asia Cooperated Medical team) have set up a wireless network with the lap computers, but an unexpected aftershock attacked, all computers in the network were all broken. The computers are repaired one by one, and the network gradually began to work again. Because of the hard ...

Posted by abbe-rocks on Thu, 21 Nov 2019 21:56:52 +0100

Python crawler crawls girls' pictures and downloads them in batches (you know ~)

1. Project introduction This project uses the program provided by Python + the use of selectors in the graph (quite easy to use) to realize crawling the picture of the girl graph (welfare graph). I have learned that the paw (2, 10) of a certain durian is right! 2. Knowledge points used ① Python Programming (I use version 3.7 ...

Posted by craigh on Tue, 19 Nov 2019 19:36:13 +0100

LeetCode network delay time (shortest path problem of graph)

Problem Description: There are N network nodes marked 1 to N. Given a list of times, it indicates the time of signal passing through the directed edge times[i] = (u, v, w), where u is the source node, v is the target node, and W is the time when a signal passes from the source node to the target node. Now, we send a signal to ...

Posted by smeee_b on Mon, 18 Nov 2019 17:24:04 +0100

Picture Loading Frame Picture Loading Frame Selection Previous

Ali P7 Mobile Internet Architect Advanced Video (Updated Daily) Free Learning Click: https://space.bilibili.com/474380680This article will illustrate the selection of the picture loading framework through Universal-Image-Loader parsing: 1. [Introduction and use of Universal-Image-Loader parsing] Basic Introduction I believe that when you normal ...

Posted by scotte on Mon, 18 Nov 2019 03:35:07 +0100

python base (30): other methods of sticking, socket s

1. Sticky 1.1 sticking phenomenon Let's start by making a program that executes commands remotely based on tcp (commands ls-l; l l l l l; pwd) When multiple commands are executed at the same time, it is likely that only part of the result will be obtained, and when other commands are executed, another part of the result will be received, which ...

Posted by justice1 on Sat, 16 Nov 2019 10:44:02 +0100

Grafana configures es es data source problems

Recently, we are using Grafana to show the data of elastic search. Next, I will use elastic search as the data source in Grafana to draw the IO diagram of the network and the IO diagram of the disk System: centos7.x, ip: A Installing grafana $ yum install https://s3-us-west-2.amazonaws.com/grafana-releases/release/grafana-4.6.3-1.x86_64.rpm ...

Posted by luxe on Thu, 14 Nov 2019 16:44:00 +0100

Real time human flow monitoring -- initial experience of Hikvision sdk

This article is mainly about the exploration process of the blogger's using the Haikang SDK for the statistics of human flow. Here is a brief record. There are about two ways to query documents and realize traffic statistics: alarm or monitor, I chose the monitoring mode here. Net? DVR? Startlisten? V30 is the interface to start monitoring. It ...

Posted by camoconnell.com on Thu, 14 Nov 2019 15:26:40 +0100

Interesting bug - Circular dependency of Java static variables

background Yes, the title is correct, not Spring Bean's circular dependency, but the circular dependency between static variables. Recent projects are simple Maven projects, deployed on the Ali Cloud through K8S, with configuration file reading rules as follows: (1) Priority is given to reading the configuration files in the same directory of t ...

Posted by seidel on Thu, 14 Nov 2019 06:43:31 +0100

Common rules checks in front-end Vue

premise In the development of vue, it is unavoidable to encounter a variety of form checks, here sorted out some checking methods used on the network and in their usual high frequencies.If you are wrong, you are welcome to add updates later. 1. Is it a legal IP address export function validateIP(rule, value,callback) { if(value==''||value==un ...

Posted by Flying Sagittarius on Thu, 14 Nov 2019 06:18:57 +0100