Express bird platform, query express information. Escaped pit

Express bird platform, query express information. Escaped pit Written in front Technology is updated and iterated, but there are always traces to follow. Endless wheel building has been exhausting. The pit that oneself jumps over, share final result, just for letting pain no longer repeat. One bac ...

Posted by ashrust on Mon, 17 Feb 2020 20:45:30 -0800

Introduction to yum package management

rpm can realize fast and simple installation of programs (compared with compilation and installation), but rpm can't solve dependency by itself, so many tools come into being to solve dependency automatically, among which yum is one of them. yum solution to dependency: There must be a file server where all the rpm packages and the package rel ...

Posted by jiggens on Sat, 15 Feb 2020 18:47:48 -0800

Angular JS file upload tool

Detailed introduction of angular file upload Angular file upload is a lightweight AngularJS file upload tool. It is designed for the file API Polyfill which does not support browser, and uses HTML5 to upload files directly. Online demo Characteristic Support upload progress, cancel or abort when uploading, support file drag ( ...

Posted by aeafisme23 on Thu, 13 Feb 2020 11:50:17 -0800

Elegant design pattern - object oriented basis

How to understand object-oriented Abstract is the prerequisite of encapsulation, inheritance and polymorphism. Reasonable abstraction comes from reasonable analysis and understanding of business topics. Reasonable abstraction should be self consistent and easy to understand about the relationship betwee ...

Posted by realmxofxnoise on Wed, 12 Feb 2020 21:23:25 -0800

CI framework extended system class library

Ci framework does not support creating CommonController directly under controllers and inheriting the parent class like yii2 framework. When we want to do login control or permission control, it is unreasonable to operate directly on the parent class controller. At this time, the more convenient method is to extend the CI controller of the pare ...

Posted by ultraviolet_998 on Mon, 10 Feb 2020 07:33:56 -0800

zabbix 4.0 theory + operation - 02 (zabbix deployment + email alarm)

zabbix theory + operation-02 (zabbix deployment + email alarm) Experimental environment Monitoring end: 192.168.136.168Monitored end: 192.168.136.185 Install LAMP yum install -y \ httpd \ mariadb-server mariadb \ php \ php-mysql \ php-gd \ libjpeg* \ php-ldap \ php-odbc \ php-pear \ php-xml \ php-xmlrpc \ php-mhash vim /etc/httpd/conf/httpd. ...

Posted by DeathfireD on Mon, 10 Feb 2020 03:12:52 -0800

Back end interaction

First step (1) Form login settings and form validation   1> Set click event - > get the password value of the account entered in the form - > use regular expression to verify the form - > send ajax request - > enter the background - > Import configuration file - > receive the data sent by ajax - &gt ...

Posted by debigmac on Sun, 09 Feb 2020 12:00:16 -0800

Python 3 regular expression and JSON

1, On regular expression 1. Definition: it is a special character sequence, which can help to detect whether a string matches the character sequence we set. 2. Function: it can quickly retrieve text and replace text. 3. scenario: 1. Check whether a string of numbers is a telephone number 2. Check whether a string conforms to e-mail format 3. Re ...

Posted by GarroteYou on Sun, 09 Feb 2020 06:16:50 -0800

Create a date using the set time zone instead of using a string representation

I have a web page with three drop-down menus, day, month and year. If I use the JavaScript Date constructor with numbers, I get the Date object for the current time zone: new Date(xiYear, xiMonth, xiDate) Enter the correct date, but because of daylight saving time, it thinks it's GMT + 01:00. The problem here is that I then passed the ...

Posted by Caesar on Sun, 09 Feb 2020 05:36:25 -0800

Attack and defense world - WEB advanced level chapter

Sketch This is my second blog. After learning the novice part of WEB last time, it's my turn to learn the advanced part of WEB. The purpose of writing down this blog is also to urge myself to do these questions again, because I referred to many writeup s when I did it for the first time, so I also wa ...

Posted by cavemaneca on Sun, 09 Feb 2020 01:22:24 -0800