Jquery implements a simple carousel effect (the code works)_jquery
Without further ado, I will just post the jquery code for you. The specific code is as follows:
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<title>Title</title>
<link rel="stylesheet" href="css/index.css">
<script src="js/jquery-1.11.3.js"></script>
<script src="js/baner.js"></script>
</head>
<body>
<div class="main">
<a href=""><img src="img/baner-1.jpg" alt=""></a>
<a href=""><img src="img/baner-2.jpg" alt=""></a>
<a href=""><img src="img/baner-3.jpg" alt=""></a>
<a href=""><img src="img/baner-4.jpg" alt=""></a>
<ul>
<li>1</li>
<li>2</li>
<li>3</li>
<li>4</li>
</ul>
</div>
</body>
</html>
/*************初始化************/
*{margin:0;padding: 0;border: none;list-style: none}
/*********轮播左右居中*************/
.main{
width: 1024px;
height: 320px;
margin: 0 auto;
position: relative;
}
.main a{
position: absolute;
}
.main a img{
width: 100%;
height: 320px;
}
/***********左边小图标************/
.main ul li.selected{
background: #f97157;
}
.main ul{
position: absolute;
z-index: 999;
top: 120px;
left: 20px;
}
.main ul li{
width: 20px;
height: 20px;
border-radius: 50%;
background: #909090;
cursor: pointer;
text-align: center;
}
/**
* Created by Administrator on 16-3-12.
*/
/***********定义全局变量和定时器*************/
var t=null;
var n=0;/**动态变化**/
var count;
/************************/
$(function(){
count=$(".main a").length;/*给动态变化的n备用*/
/**让不是轮播中的第一个隐藏**/
$(".main a:not(:first-child)").hide();
/*点击当前li当前li对应的图片显示出来*/
$(".main ul li").click(function(){
var index=$(this).text()-1;
n=index;
console.log(n);
/*****让当前显示的图片0.5S内渐隐，并匹配下一个渐显示*****/
$(".main a").filter(":visible").fadeOut(500).parent().children().eq(index).fadeIn(1000);
/*******聚焦，给当前li追加类，改变背景色*******/
$(this).addClass("selected");
/****同时移除当前li的所有兄弟的类名为selected，还原背景色*****/
$(this).siblings().removeClass("selected");
});
/***定义定时器3秒执行一次****/
t=setInterval("autoMove()",3000);
/****当鼠标进入时候定时器停止，移除时候定时器开启****/
$(".main").hover(function(){clearInterval(t)}, function(){t = setInterval("autoMove()", 3000);});
});
/***定义自动轮播函数****/
function autoMove(){
if(n>=(count-1)){
n=0;
}else{
++n;
}
/*****给li执行匹配的事件*****/
$(".main ul li").eq(n).trigger("click");
}The above is the simple carousel effect implemented by Jquery introduced by the editor. I hope it will be helpful to everyone!
Hot AI Tools
Undresser.AI Undress
AI-powered app for creating realistic nude photos
AI Clothes Remover
Online AI tool for removing clothes from photos.
Undress AI Tool
Undress images for free
Clothoff.io
AI clothes remover
Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!
Hot Article
Hot Tools
Notepad++7.3.1
Easy-to-use and free code editor
SublimeText3 Chinese version
Chinese version, very easy to use
Zend Studio 13.0.1
Powerful PHP integrated development environment
Dreamweaver CS6
Visual web development tools
SublimeText3 Mac version
God-level code editing software (SublimeText3)
Hot Topics
1665
14
1424
52
1322
25
1270
29
1250
24
JavaScript Engines: Comparing Implementations
Apr 13, 2025 am 12:05 AM
Different JavaScript engines have different effects when parsing and executing JavaScript code, because the implementation principles and optimization strategies of each engine differ. 1. Lexical analysis: convert source code into lexical unit. 2. Grammar analysis: Generate an abstract syntax tree. 3. Optimization and compilation: Generate machine code through the JIT compiler. 4. Execute: Run the machine code. V8 engine optimizes through instant compilation and hidden class, SpiderMonkey uses a type inference system, resulting in different performance performance on the same code.
Python vs. JavaScript: The Learning Curve and Ease of Use
Apr 16, 2025 am 12:12 AM
Python is more suitable for beginners, with a smooth learning curve and concise syntax; JavaScript is suitable for front-end development, with a steep learning curve and flexible syntax. 1. Python syntax is intuitive and suitable for data science and back-end development. 2. JavaScript is flexible and widely used in front-end and server-side programming.
From C/C to JavaScript: How It All Works
Apr 14, 2025 am 12:05 AM
The shift from C/C to JavaScript requires adapting to dynamic typing, garbage collection and asynchronous programming. 1) C/C is a statically typed language that requires manual memory management, while JavaScript is dynamically typed and garbage collection is automatically processed. 2) C/C needs to be compiled into machine code, while JavaScript is an interpreted language. 3) JavaScript introduces concepts such as closures, prototype chains and Promise, which enhances flexibility and asynchronous programming capabilities.
JavaScript and the Web: Core Functionality and Use Cases
Apr 18, 2025 am 12:19 AM
The main uses of JavaScript in web development include client interaction, form verification and asynchronous communication. 1) Dynamic content update and user interaction through DOM operations; 2) Client verification is carried out before the user submits data to improve the user experience; 3) Refreshless communication with the server is achieved through AJAX technology.
JavaScript in Action: Real-World Examples and Projects
Apr 19, 2025 am 12:13 AM
JavaScript's application in the real world includes front-end and back-end development. 1) Display front-end applications by building a TODO list application, involving DOM operations and event processing. 2) Build RESTfulAPI through Node.js and Express to demonstrate back-end applications.
Understanding the JavaScript Engine: Implementation Details
Apr 17, 2025 am 12:05 AM
Understanding how JavaScript engine works internally is important to developers because it helps write more efficient code and understand performance bottlenecks and optimization strategies. 1) The engine's workflow includes three stages: parsing, compiling and execution; 2) During the execution process, the engine will perform dynamic optimization, such as inline cache and hidden classes; 3) Best practices include avoiding global variables, optimizing loops, using const and lets, and avoiding excessive use of closures.
Python vs. JavaScript: Community, Libraries, and Resources
Apr 15, 2025 am 12:16 AM
Python and JavaScript have their own advantages and disadvantages in terms of community, libraries and resources. 1) The Python community is friendly and suitable for beginners, but the front-end development resources are not as rich as JavaScript. 2) Python is powerful in data science and machine learning libraries, while JavaScript is better in front-end development libraries and frameworks. 3) Both have rich learning resources, but Python is suitable for starting with official documents, while JavaScript is better with MDNWebDocs. The choice should be based on project needs and personal interests.
Python vs. JavaScript: Development Environments and Tools
Apr 26, 2025 am 12:09 AM
Both Python and JavaScript's choices in development environments are important. 1) Python's development environment includes PyCharm, JupyterNotebook and Anaconda, which are suitable for data science and rapid prototyping. 2) The development environment of JavaScript includes Node.js, VSCode and Webpack, which are suitable for front-end and back-end development. Choosing the right tools according to project needs can improve development efficiency and project success rate.
