Hello Python learners and curious developers! You’ve probably come across this popular saying in the programming world: “Everything is an object in Python.” It sounds almost mystical, right? Well, it kind of is this concept is one of the core reasons Python is so flexible and powerful. So, fasten your seatbelt! This post will take…

Text processing is a cornerstone of Linux system administration and development. Whether you’re parsing logs, transforming data, or automating tasks, tools like grep, awk, sed, and jq are indispensable. Each of these command-line utilities has unique strengths, and together they form a powerful toolkit for manipulating text and data in Linux. In this comprehensive guide, we’ll explore what each tool…

Preface: Understanding Git Git is an open source distributed version control system used to efficiently manage file changes (especially code), record the history of every modification, and support multi-person collaborative development. Git Advantages In one sentence: Git = a time machine for file changes + a bridge for team collaboration + a guardian of code…

XHTML is HTML written in XML format. What is XHTML? Why use XHTML? Many pages on the Internet contain “bad” HTML. The following HTML code works perfectly fine if viewed in a browser (even though it doesn’t follow HTML rules): XML is a markup language that must be correctly tagged and well-formed. There are a…

A URL is a web page address. A URL can be made up of letters, such as “it-res.com”, or an Internet Protocol (IP) address: 1.1.1.1. Most people access a website using its domain name because names are easier to remember than numbers. URL – Uniform Resource Locator A web browser requests a page from a…

HTML colors are a mixture of red, green, and blue. Color value HTML colors are defined by a hexadecimal notation consisting of red, green, and blue values (RGB). The minimum value of each color is 0 (hexadecimal: #00), and the maximum value is 255 (hexadecimal: #FF). This table shows the specific effects of mixing three…

HTML forms and input HTML forms are used to collect input from users. An HTML form represents an area in a document that contains interactive controls and sends information collected from the user to a web server. HTML forms usually contain various elements such as input fields, check boxes, radio buttons, drop-down lists, etc. The following…

HTML layout Web page layout is very important to improve the appearance of your website. Please design your web page layout carefully. Online Instance Web Layout Using the <div> ElementHow to use the <div> element to add layout. Web Layout Using the <table> ElementHow to use the <table> element to add layout. 网站布局 Website Layout Most…

HTML link (Anchor) is the core part of jumping between web pages. HTML uses links to connect to another document on the web. A link in HTML is an element used to navigate between different web pages. Links are commonly used to associate one web page with another web page or resource such as a…

HTML Lists HTML supports ordered, unordered, and definition lists: HTML List Order list Unordered list Online Instance Unordered ListThis example demonstrates an unordered list. Order listThis example demonstrates an ordered list. HTML unordered list An unordered list is a list of items that are marked with bold dots (typically small black circles). Unordered lists use the…