First HTML file.html

HTML , 1, HTML introduction 1. What is HTML HTML: Hyper Text Markup Language All kinds of tags are used to make web pages and tell browsers how to display pages 2. Function Make web pages, control the display of web pages and content Insert picture, music, video, animation and other multimedia S ...

Posted by RobOgden on Mon, 29 Jun 2020 05:36:00 +0200

HTML5. Notes. Cases

HTML 1, html introduction 1. What is HTML? HTML:hyper text Makrup language hypertext markup language is composed of various tags, which are used to make web pages and tell browsers how to display pages 2. Function Make web pages, control the display of web pages and content Insert picture, musi ...

Posted by gruzaw on Tue, 16 Jun 2020 10:07:59 +0200

TCP - packet sticking / unpacking

TCP sticking / unpacking TCP is a "flow" protocol. The so-called flow is a string of data without boundary. You can think of the running water in the river. They are connected in one piece and there is no boundary between them. The bottom layer of TCP does not know the specific meaning of th ...

Posted by anjanesh on Sun, 14 Jun 2020 09:30:18 +0200

GCC 9.2 compiler installation method and C++17 standard test example in Ubuntu 16 system

1. Download the source file    http://mirror.linux-ia64.org/gnu/gcc/releases/gcc-9.2.0/   2 compile and install #decompression tar zxvf gcc-9.2.0.tar.gz #Create compilation directory mkdir gcc-9.2.0-build As shown in the figure   3 download dependency package cd /home/gcc/gcc-9.2.0-build ...

Posted by gijew on Sun, 14 Jun 2020 09:25:44 +0200

Shell_04_Regular expression RE

Shell_04_Regular expression RE What is a regular expression Simply put, a regular expression is the way to process strings. It handles strings in units of behavior. Regular expressions, assisted by some special symbols, make it easy for users to "search/delete/replace" a particular string ...

Posted by geekette on Sat, 13 Jun 2020 03:06:51 +0200

Linux command (30)ls command

ls command Function description: Lists a list of files (including subdirectories) in a specified directory, but does not display the contents of the files Usage: ls [OPTION]... [FILE]... option Effect -a Show all files, including hidden files -A Show all files except.And.. -l Show detailed properties of the file -h Converts the f ...

Posted by mcovalt on Thu, 28 May 2020 18:33:58 +0200

Using spring MVC for file upload and docking with FTP server

Add the bean s needed to upload files in pomxml Adding information such as file size file encoding to dispatcher servlet XML Background upload process FileService source code display FTPUtil source code display In a project, file upload is often needed. The following process is the file upload step I used in ...

Posted by doood on Fri, 01 May 2020 01:38:15 +0200

CentOS7 Configuration Firewall

I. The concept of firewalls Firewall technology is a technology that combines all kinds of software and hardware devices for security management and screening to help computer networks build a relatively isolated protection barrier between their internal and external networks to protect user data and information security. Professional firewall ...

Posted by Gondwana on Thu, 23 Apr 2020 02:21:08 +0200

How to use urlretrieve in Python 3

The urlretrieve() function provided by the urllib module. The urlretrieve () method downloads the remote data directly to the local. urlretrieve(url, filename=None, reporthook=None, data=None) The parameter filename specifies the save local path (if the parameter is not specified, urllib will generate a temporary file to save ...

Posted by jane on Wed, 01 Apr 2020 17:32:56 +0200

Text gadget for shell programming

1. Text Processing Tools1. grep tools2. cut tool3. sort tool4. uniq Tools5. tee tools6. diff tools7. Pase Tool2. Characteristics of bash1. Auto-Completion of Commands and Files2. Common wildcards3. Quotes in bash 1. Text Processing Tools 1. grep tools grep is a==row==filter tool; used to filter rows based on keywords Grammar and Options Gr ...

Posted by released on Thu, 20 Feb 2020 19:20:16 +0100