Use of switch variables in js
Rendering:
The code is as follows:
<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title></title>
<style>
*{
margin: 0;
padding: 0;
font-family: "微软雅黑";
}
#wrap{
width: 400px;
height: 500px;
border: 1px solid #ccc;
margin: 20px auto;
position: relative;
overflow: hidden;
background: #f1f1f1;
}
#wrap a{
width: 40px;
height: 50px;
background:rgba(0,0,0,.4);
/*border: 1px solid #fff;*/
position: absolute;
top: 50%;
margin-top: -25px;
text-align: center;
text-decoration: none;
line-height: 50px;
color: white;
font-size: 30px;
}
#wrap a:hover{
background:rgba(0,0,0,.9);
}
#prev{
left: 10px;
}
#next{
right: 10px;
}
#note,#span1{
position: absolute;
left: 0;
width: 400px;
height: 30px;
line-height: 30px;
text-align: center;
color: white;
background: rgba(0,0,0,.6);
}
#note{
bottom: 0;
}
#span1{
top: 0;
}
#img1{
width: 400px;
height: 500px;
}
section{
width: 400px;
height: 50px;
margin: 30px auto 0;
line-height: 50px;
text-align: center;
}
section input{
padding: 5px 15px;
margin-right: 10px;
}
.pink{
background: pink;
color: white;
}
</style>
</head>
<script>
window.onload=function(){
var oPrev=document.getElementById('prev');
var oNext=document.getElementById('next');
var oNote=document.getElementById('note');
var oSpan=document.getElementById('span1');
var oImg=document.getElementById('img1');
var arrURL=['https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1488463139&di=af377bee44237b092b20f1f7c86f2eb6&imgtype=jpg&er=1&src=http%3A%2F%2Fwww.wed114.cn%2Fjiehun%2Fuploads%2Fallimg%2F160304%2F52_160304170213_3.jpg','https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1488463080&di=a0ba47cd212e8f5755a2f42738511a2e&imgtype=jpg&er=1&src=http%3A%2F%2Fwww.6a8a.com%2Fuploadfile%2F2017%2F0809%2F2016071617592321137.jpg','https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1488463040&di=f9290db609a0994bdbd7221e644904ba&imgtype=jpg&er=1&src=http%3A%2F%2Fwww.wed114.cn%2Fjiehun%2Fuploads%2Fallimg%2F160405%2F52_160405165047_3.jpg','https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1488462814&di=e1dacd05467c01a13d9eb4d800853f20&imgtype=jpg&er=1&src=http%3A%2F%2Fwww.wed114.cn%2Fjiehun%2Fuploads%2Fallimg%2F160304%2F52_160304160734_5.jpg','https://timgsa.baidu.com/timg?image&quality=80&size=b9999_10000&sec=1487868087852&di=3011f4a2b23b63559c32f8f154ad0a3a&imgtype=0&src=http%3A%2F%2Fwww.wed114.cn%2Fjiehun%2Fuploads%2Fallimg%2F160411%2F52_160411172520_1.jpg'];
var arrNote=['多肉植物佛珠怎么养 翡翠珠的养殖方法','多肉植物紫弦月的养殖方法','多肉植物球松怎么养 球松的养殖方法','是一种小巧又可爱的 多肉植物','多肉植物蓝松怎么繁殖'];
var num=0;
var oBtn=document.getElementsByTagName('input');
var onOff=true;
oBtn[0].onclick=function(){
onOff=true;
this.className='pink';
this.nextSibling.className='';
}
oBtn[1].onclick=function(){
onOff=false;
this.className='pink';
this.previousSibling.className='';
}
function fnTab(){
oSpan.innerHTML=num+1+'/'+arrURL.length;
oImg.src=arrURL[num];
oNote.innerHTML=arrNote[num];
}
fnTab();
oPrev.onclick=function(){
num--;
if(num==-1){
if(onOff){
num=arrNote.length-1;
}else{
alert('已经是第一张图片了，亲！');
num=0;
}
}
fnTab();
}
oNext.onclick=function(){
num++;
if(num==arrNote.length){
if(onOff)
{
num=0;
}else{
alert('已经是第一张图片了，亲！');
num=arrNote.length-1;
}
}
fnTab();
}
}
</script>
<body>
<section>
<input type="button" value="循环播放" class="pink"/><input type="button" value="顺序播放" />
</section>
<p id="wrap">
<a href="javascript:;" rel="external nofollow" rel="external nofollow" id="prev"><</a>
<a href="javascript:;" rel="external nofollow" rel="external nofollow" id="next">></a>
<p id="note">图片文字加载中......</p>
<span id="span1">数量正在计算中......</span>
<img id="img1" / alt="Use of switch variables in js" >
</p>
</body>
</html>The above is the entire content of this article. I hope that the content of this article can bring some help to everyone's study or work. I also hope to support the PHP Chinese website!
For more articles related to the use of switch variables in js, please pay attention to the PHP Chinese website!
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
AI Hentai Generator
Generate AI Hentai for free.
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
1385
52
Recommended: Excellent JS open source face detection and recognition project
Apr 03, 2024 am 11:55 AM
Face detection and recognition technology is already a relatively mature and widely used technology. Currently, the most widely used Internet application language is JS. Implementing face detection and recognition on the Web front-end has advantages and disadvantages compared to back-end face recognition. Advantages include reducing network interaction and real-time recognition, which greatly shortens user waiting time and improves user experience; disadvantages include: being limited by model size, the accuracy is also limited. How to use js to implement face detection on the web? In order to implement face recognition on the Web, you need to be familiar with related programming languages and technologies, such as JavaScript, HTML, CSS, WebRTC, etc. At the same time, you also need to master relevant computer vision and artificial intelligence technologies. It is worth noting that due to the design of the Web side
Essential tools for stock analysis: Learn the steps to draw candle charts with PHP and JS
Dec 17, 2023 pm 06:55 PM
Essential tools for stock analysis: Learn the steps to draw candle charts in PHP and JS. Specific code examples are required. With the rapid development of the Internet and technology, stock trading has become one of the important ways for many investors. Stock analysis is an important part of investor decision-making, and candle charts are widely used in technical analysis. Learning how to draw candle charts using PHP and JS will provide investors with more intuitive information to help them make better decisions. A candlestick chart is a technical chart that displays stock prices in the form of candlesticks. It shows the stock price
How to create a stock candlestick chart using PHP and JS
Dec 17, 2023 am 08:08 AM
How to use PHP and JS to create a stock candle chart. A stock candle chart is a common technical analysis graphic in the stock market. It helps investors understand stocks more intuitively by drawing data such as the opening price, closing price, highest price and lowest price of the stock. price fluctuations. This article will teach you how to create stock candle charts using PHP and JS, with specific code examples. 1. Preparation Before starting, we need to prepare the following environment: 1. A server running PHP 2. A browser that supports HTML5 and Canvas 3
PHP and JS Development Tips: Master the Method of Drawing Stock Candle Charts
Dec 18, 2023 pm 03:39 PM
With the rapid development of Internet finance, stock investment has become the choice of more and more people. In stock trading, candle charts are a commonly used technical analysis method. It can show the changing trend of stock prices and help investors make more accurate decisions. This article will introduce the development skills of PHP and JS, lead readers to understand how to draw stock candle charts, and provide specific code examples. 1. Understanding Stock Candle Charts Before introducing how to draw stock candle charts, we first need to understand what a candle chart is. Candlestick charts were developed by the Japanese
What are instance variables in Java
Feb 19, 2024 pm 07:55 PM
Instance variables in Java refer to variables defined in the class, not in the method or constructor. Instance variables are also called member variables. Each instance of a class has its own copy of the instance variable. Instance variables are initialized during object creation, and their state is saved and maintained throughout the object's lifetime. Instance variable definitions are usually placed at the top of the class and can be declared with any access modifier, which can be public, private, protected, or the default access modifier. It depends on what we want this to be
How to get variables from PHP method using Ajax?
Mar 09, 2024 pm 05:36 PM
Using Ajax to obtain variables from PHP methods is a common scenario in web development. Through Ajax, the page can be dynamically obtained without refreshing the data. In this article, we will introduce how to use Ajax to get variables from PHP methods, and provide specific code examples. First, we need to write a PHP file to handle the Ajax request and return the required variables. Here is sample code for a simple PHP file getData.php:
Mind map of Python syntax: in-depth understanding of code structure
Feb 21, 2024 am 09:00 AM
Python is widely used in a wide range of fields with its simple and easy-to-read syntax. It is crucial to master the basic structure of Python syntax, both to improve programming efficiency and to gain a deep understanding of how the code works. To this end, this article provides a comprehensive mind map detailing various aspects of Python syntax. Variables and Data Types Variables are containers used to store data in Python. The mind map shows common Python data types, including integers, floating point numbers, strings, Boolean values, and lists. Each data type has its own characteristics and operation methods. Operators Operators are used to perform various operations on data types. The mind map covers the different operator types in Python, such as arithmetic operators, ratio
The relationship between js and vue
Mar 11, 2024 pm 05:21 PM
The relationship between js and vue: 1. JS as the cornerstone of Web development; 2. The rise of Vue.js as a front-end framework; 3. The complementary relationship between JS and Vue; 4. The practical application of JS and Vue.
