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实现图片自动和手动切换的编程技巧

作者:admin | 发布时间:2020-08-27

打看网页,总会看到有些图片集是自动轮播浏览,有些图片集则需要浏览者手动翻页浏览。那是如何实现这两种不同的图片浏览方法呢?我们可以利用自动播放命令autoplay,设定其属性值,是否自动播放,true,false,把它放到脚本代码里即可实现。


使用true自动轮播


使用false手动切换


完整的图片轮播代码如下:

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<html xmlns="http://www.w3.org/1999/xhtml">

<head>

<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />

<title>图片切换代码</title>

<script src="js/jquery-1.8.3.min.js"></script>

</head>

<style type="text/css">

*{ margin:0; padding:0; list-style:none;}

img{ border:0;}

.ban{ width:500px; height:600px; position:relative; overflow:hidden;margin:40px auto 0 auto;}

.ban2{ width:500px; height:500px; position:relative; overflow:hidden;}

.ban2 ul{ position:absolute; left:0; top:0;}

.ban2 ul li{ width:500px; height:500px;}

.prev{ float:left; cursor:pointer;}

.num{ height:82px;overflow:hidden; width:430px; position:relative;float:left;}

.min_pic{ padding-top:10px; width:500px;}

.num ul{ position:absolute; left:0; top:0;}

.num ul li{ width:80px; height:80px; margin-right:5px; padding:1px;}

.num ul li.on{ border:1px solid red; padding:0;}

.prev_btn1{ width:16px; text-align:center; height:18px; margin-top:40px; margin-right:20px; cursor:pointer; float:left;}

.next_btn1{  width:16px; text-align:center; height:18px; margin-top:40px;cursor:pointer;float:right;}

.prev1{ position:absolute; top:220px; left:20px; width:28px; height:51px;z-index:9;cursor:pointer;}

.next1{ position:absolute; top:220px; right:20px; width:28px; height:51px;z-index:9;cursor:pointer;}

.mhc{ background:#000; width:100%;opacity:0.5;-moz-opacity:0.5;filter:alpha(Opacity=50); position:absolute; left:0; top:0; display:none;}

.pop_up{ width:500px; height:500px; padding:10px; background:#fff; position:fixed; -position:absolute; left:50%; top:50%; margin-left:-255px; margin-top:-255px; display:none; z-index:99;}

.pop_up_xx{ width:40px; height:40px; position:absolute; top:-40px; right:0; cursor:pointer;}

.pop_up2{ width:500px; height:500px; position:relative; overflow:hidden;}

.pop_up2{ width:500px; height:500px; position:relative; overflow:hidden; float:left;}

.pop_up2 ul{ position:absolute; left:0; top:0;}

.pop_up2 ul li{ width:500px; height:500px; float:left;}

</style>

<body>

<!-- 代码begin -->

<div id="demo1">

     <div id="ban_pic1">

         <div id="prev1"><img src="images/index_tab_l.png" width="28" height="51"  alt=""></div>

         <div id="next1"><img src="images/index_tab_r.png" width="28" height="51"  alt=""></div>

         <ul>

              <li><a href="javascript:;"><img src="images/b1.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b2.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b3.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b4.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b5.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b1.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b2.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b3.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b4.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b5.jpg" width="500" height="500" alt=""></a></li>

         </ul>

     </div>

     <div>

         <div id="prev_btn1"><img src="images/feel3.png" width="9" height="18"  alt=""></div>

         <div class="num clearfix" id="ban_num1">

              <ul>

                   <li><a href="javascript:;"><img src="images/s1.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s2.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s3.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s4.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s5.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s1.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s2.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s3.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s4.jpg" width="80" height="80" alt=""></a></li>

                   <li><a href="javascript:;"><img src="images/s5.jpg" width="80" height="80" alt=""></a></li>

              </ul>

         </div>

         <div id="next_btn1"><img src="images/feel4.png" width="9" height="18"  alt=""></div>

     </div>

</div>

 

<div></div>

 

<div id="demo2">

     <div><img src="images/chacha3.png" width="40" height="40"  alt=""></div>

     <div id="ban_pic2">

         <div id="prev2"><img src="images/index_tab_l.png" width="28" height="51"  alt=""></div>

         <div id="next2"><img src="images/index_tab_r.png" width="28" height="51"  alt=""></div>

         <ul>

              <li><a href="javascript:;"><img src="images/b1.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b2.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b3.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b4.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b5.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b1.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b2.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b3.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b4.jpg" width="500" height="500" alt=""></a></li>

              <li><a href="javascript:;"><img src="images/b5.jpg" width="500" height="500" alt=""></a></li>

         </ul>

     </div>

</div>

<script src="js/pic_tab.js"></script>

<script type="text/javascript">

jq('#demo1').banqh({

     box:"#demo1",//总框架

     pic:"#ban_pic1",//大图框架

     pnum:"#ban_num1",//小图框架

     prev_btn:"#prev_btn1",//小图左箭头

     next_btn:"#next_btn1",//小图右箭头

     pop_prev:"#prev2",//弹出框左箭头

     pop_next:"#next2",//弹出框右箭头

     prev:"#prev1",//大图左箭头

     next:"#next1",//大图右箭头

     pop_div:"#demo2",//弹出框框架

     pop_pic:"#ban_pic2",//弹出框图片框架

     pop_xx:".pop_up_xx",//关闭弹出框按钮

     mhc:".mhc",//朦灰层

     autoplay:false,//是否自动播放,是true,否false

     interTime:5000,//图片自动切换间隔

     delayTime:400,//切换一张图片时间

     pop_delayTime:400,//弹出框切换一张图片时间

     order:0,//当前显示的图片(从0开始)

     picdire:true,//大图滚动方向(true为水平方向滚动)

     mindire:true,//小图滚动方向(true为水平方向滚动)

     min_picnum:5,//小图显示数量

     pop_up:true//大图是否有弹出框

})

</script>

<!-- 代码end -->

</body>

</html>


T10.png

         有了这个技巧之后,程序员就可以按照实际情况灵活应用。


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