简体中文(ZH-CN) English(EN) 繁体中文(ZH-TW) 日本語(JA) 한국어(KO) Melayu(MS) Français(FR) Deutsch(DE)
Home > Web Front-end > JS Tutorial > body text

JS implementation method of Taobao slideshow effect_javascript skills

WBOY
Release： 2016-05-16 17:39:33
Original
1620 people have browsed it

Implementation ideas:

1. The for loop adds click events to the number buttons.

2. The for loop first clears the button's style, and then sets the current style.

3. Add a custom attribute index aBtn[i].index=i aBtn[2]=2 to each button. If you want the second button to correspond to the second picture, use a motion frame to change the UL of the large picture each time. Move -150px because the image height is 150px. If you move to the nth picture, it is -150*n.

4. Define the variable now for automatic playback. Assign the current image to now now=this.index.

5. Define the autoplay function. now Next picture, if judgment, when reaching the last picture, set now to 0, which is the first picture. if(now==aBtn.length)

6. Define a timer and call the autoplay function every 2 seconds.

7. Clear the timer when the mouse points to the picture.

8. The timer starts when the mouse leaves the picture.

Copy code The code is as follows:

<script><br> window.onload=function ()<br> {<br> var oDiv=document.getElementById('play');<br> var aBtn=oDiv.getElementsByTagName('ol')[0].getElementsByTagName('li');<br> var oUl=oDiv.getElementsByTagName('ul')[0];<br> var now=0;<br><br> for(var i=0;i<aBtn.length;i )<BR> {<BR> aBtn[i].index=i;<BR> aBtn[i].onmouseover=function()<BR> {<BR> now=this.index; //The current value is assigned to now<BR> tab();<BR> }<BR> };<br><br> function tab()<BR> { for(var i=0;i<aBtn.length;i) <BR> {<BR> aBtn[i ; -150*now}); //Use the motion framework to set UL's TOP to the current number*-150. The third picture is 2*-150<BR> };<BR><BR> function next()<BR>                                                                                                                                              One piece<BR> }<br> tab(); //Pull the picture back to the first one and continue moving<br> };<BR><BR> var timer=setInterval(next,2000); //2 seconds Automatically switch pictures<BR><BR> oDiv.onmouseover=function()<BR> {<BR> clearInterval(timer); //Clear timer<BR> };<BR><br> oDiv.onmouseout=function( ; <br>Full code:<br><br><BR><BR><BR>Copy code<br><br><BR> The code is as follows:<BR><div class="codebody" id="code52143"><BR><!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"><br> <html xmlns="http://www.w3.org/1999/xhtml"><br> <head><br> <meta http-equiv="Content-Type" content="text/html; charset=utf-8" /><br> <title>淘宝幻灯片上下滑动效果 —— www.zhinengshe.com —— 智能课堂</title><br> <link href="css.css" rel="stylesheet" type="text/css" /><br> <script src="baseCommon.js"></script>
 <script><br> window.onload=function()<br> {<br>     var oDiv=document.getElementById('play');<br>     var aBtn=oDiv.getElementsByTagName('ol')[0].getElementsByTagName('li');<br>     var oUl=oDiv.getElementsByTagName('ul')[0];<br>     var now=0;<br><br>     for(var i=0;i<aBtn.length;i )<br>     {<br>         aBtn[i].index=i;<br>         aBtn[i].onmouseover=function()<br>         {<br>             now=this.index;  //当前值赋给now<br>             tab();<br>         }<br>     };<br><br>     function tab()<br>     {    <br>         for(var i=0;i<aBtn.length;i ) <br>         {<br>             aBtn[i].className='';  //把所有按钮的样式清空<br>         };<br>         aBtn[now].className='active';  //当前按钮样式设置<br>         startMove(oUl,{top:-150*now});  //用运动框架把UL的TOP设置为当前个数*-150，第三张图片就是2*-150<br>     };<br><br>     function next()<br>     {<br>         now ;  //切换图片<br>         if(now==aBtn.length)  //如果到了最后一张图片<br>         {<br>             now=0;  //    把图片拉回第一张<br>         }<br>         tab();  //把图片拉回第一张后继续运动<br>     };<br><br>     var timer=setInterval(next,2000);  //2秒自动切换图片<br><br>     oDiv.onmouseover=function()<br>     {<br>         clearInterval(timer);  //清除定时器<br>     };<br><br>     oDiv.onmouseout=function()<br>     {<br>         timer=setInterval(next,2000);  //开启定时器<br>     };<br> };<br> </script>
 

 

 

    

            
  1. 1

    2.         
  2. 2

    3.         
  3. 3

    4.         
  4. 4

    5.         
  5. 5

    6.     

    

            
  • 广告一

    •         
  • 广告二

    •         
  • 广告三

    •         
  • 广告四

    •         
  • 广告五

    •     

 

 
 
Related labels：
js slideshow Effect
source：php.cn
Previous article：Introduction to JS modules and namespaces_javascript skills Next article：jQuery CSS implements menu sliding expansion and contraction (imitation of Taobao)_jquery
Statement of this Website
The content of this article is voluntarily contributed by netizens, and the copyright belongs to the original author. This site does not assume corresponding legal responsibility. If you find any content suspected of plagiarism or infringement, please contact admin@php.cn
Latest Articles by Author
Latest Issues
Can a workerpool declared in multiple routes still maintain its cpu usage without caring about the threshold I'm hoping to find a node.js system with a workerpool to handle CPU intensive tasks, but I...
From 2024-04-06 19:54:23
0
1
444
Scatterplot points do not maintain values ​​when zooming in d3.js This is my first time using d3.js, so please bear with me. I implemented it as pure JavaSc...
From 2024-04-06 18:16:26
0
1
403
Show hidden side panels: checked I would like to have a navigation menu in the side panel with the ability to switch to vie...
From 2024-04-06 15:49:33
0
1
319
Should we use SSG to deploy dashboards created with Nuxt.js? We will develop a dashboard for internal use using Nuxt.js. Since this will be an internal...
From 2024-04-06 13:17:44
0
1
493
Electron gets AppData on preload How to get the preloaded AppData directory? Background.js[...]asyncfunctioncreateWindow(){...
From 2024-04-06 11:05:31
0
1
417
Related Topics
More>
Popular Recommendations
Popular Tutorials
More>
Related Tutorials
Popular Recommendations
Latest courses
Latest Downloads
More>
Web Effects
Website Source Code
Website Materials
Front End Template
About us Disclaimer Sitemap
php.cn：Public welfare online PHP training，Help PHP learners grow quickly！