系统之家

Windows 11、Windows 10、Windows 7、Windows XP系统镜像。
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办公之家

市场全渠道销售表现洞察
行业重点品牌与爆品研究
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培训教学

组织良好且易于理解的Web构建教程，其中包含大量如何使用HTML、CSS、JavaScript、SQL、Python、PHP、Bootstrap、Java、XML等的示例。
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软件智库

操作系统安装、软件安装与使用、U盘启动盘制作。
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HTML




The language for building web pages


Learn HTML HTML Reference HTML Tags

HTML Example:

<!DOCTYPE html>
<html>
<head>
<title>HTML Tutorial</title>
</head>
<body>

<h1>This is a heading</h1>
<p>This is a paragraph.</p>

</body>
</html>
Try it Yourself

CSS




The language for styling web pages

Learn CSS
CSS Reference

CSS Example:

body {
  background-color: lightblue;
}

h1 {
  color: white;
  text-align: center;
}

p {
  font-family: verdana;
}
Try it Yourself

JavaScript




The language for programming web pages

Learn JavaScript
JavaScript Reference

JavaScript Example:

<button onclick="myFunction()">Click Me!</button>

<script>
function myFunction() {
  let x = document.getElementById("demo");
  x.style.fontSize = "25px";
  x.style.color = "red";
}
</script>
Try it Yourself

Python




A popular programming language

Learn Python
Python Reference

Python Example:

if 5 > 2:
  print("Five is greater than two!")
Try it Yourself

SQL




A language for accessing databases

Learn SQL
SQL Reference

SQL Example:

SELECT * FROM Customers
WHERE Country='Mexico';
Try it Yourself

PHP

A web server programming language
Learn PHP

jQuery

A JS library for developing web pages
Learn jQuery

Java

A programming language
Learn Java

C++

A programming language
Learn C++

W3.CSS

A CSS framework for faster and better responsive web pages
Learn W3.CSS

Bootstrap

A CSS framework for designing better web pages
Learn Bootstrap

C

C#

R

Kotlin

Node.js

React

JSON

Vue

MySQL

XML

Sass

Icons

RWD

Graphics

SVG

Canvas

Raspberry Pi

Cyber Security

Colors

Git

Matplotlib

NumPy

Pandas

SciPy

ASP

AngularJS

AppML

Go

TypeScript

Django

MongoDB

Statistics

Data Science

PostgreSQL

HowTo

Code Game

Spaces

Typing Speed

Excel

DSA - Data Structures and Algorithms

Machine Learning

Artificial Intelligence