javascript入门图片对象(无刷新变换图片)\滚动图像

日期：2020-06-12 栏目：程序人生浏览：次

<%@LANGUAGE="JAVASCRIPT" CODEPAGE="936"%>
<!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=gb2312" />
<title>图片对象</title>
<script language="javascript">

</script>
</head>

<body onload="MM_preloadImages('img/3.jpg','img/2.jpg','img/4.jpg')">

<p><strong>演示一：无刷新变换图片（有点歪）</strong></p>
<p>
  <select name="select1" onchange="img(this.options.selectedIndex)">
    <option value="img1">1</option>
    <option value="img2">2</option>
    <option value="img3">3</option>
    <option value="img4">4</option>
  </select>
  <input type="image" name="img" src="img/7.jpg" />
</p>
<p><strong>演示二：鼠标触发图片变换（书面名称好像叫图像滚动）</strong></p>
<p>
<script language="javascript">
    //先建立两个数组，一组是on 状态的，一组是off状态的
    //数组使用的是字符串作索引，一来方便识别，二来在代码运行中不会冲突
    offimg=new Array()
    offimg["play"]=new Image(60,50)
    offimg["stop"]=new Image(60,50)
    offimg["pause"]=new Image(60,50)
    offimg["rewind"]=new Image(66,55)
    //赋值
    offimg["play"].src="img/1.jpg"
    offimg["stop"].src="img/2.jpg"
    offimg["pause"].src="img/3.jpg"
    offimg["rewind"].src="img/4.jpg"
    //第二个数组
    onimg=new Array()
    onimg["play"]=new Image(60,50)
    onimg["stop"]=new Image(60,50)
    onimg["pause"]=new Image(60,50)
    onimg["rewind"]=new Image(66,55)
    //赋值
    onimg["play"].src="img/5.jpg"
    onimg["stop"].src="img/6.jpg"
    onimg["pause"].src="img/7.jpg"
    onimg["rewind"].src="img/1.jpg"
    function on(imgname){
        if(document.images){//判断浏览器是否能够处理图片对象
            document.images[imgname].src=onimg[imgname].src//将对应的图片对象的src值赋给图片
        }
    }
    function off(imgname){
        if(document.images){//判断浏览器是否能够处理图片对象
            document.images[imgname].src=offimg[imgname].src//将对应的图片对象的src值赋给图片
        }
    }
    function setmsg(msg){//改变状态栏提示
        window.status=msg;
        return true;
    }
</script>
<table width="591" border="1">
  <tr>
    <td width="169"><table border="0" cellpadding="0" cellspacing="0">
      <tr>
        <td><a href="http://thcjp.cnblogs.com" target="_top" onclick="MM_nbGroup('down','group1','Blogs','img/3.jpg',1)" onmouseover="MM_nbGroup('over','Blogs','img/2.jpg','img/4.jpg',1)" onmouseout="MM_nbGroup('out')"><img src="img/1.jpg" alt="田轰穿博客" name="Blogs" width="80" height="120" border="0" id="Blogs" onload="" /></a></td>
      </tr>
    </table>
      <p><a href="http://thcjp.cnblogs.com">上面是DW做的<br />
是预载入图片</a></p></td>
    <td width="406">
    <a href="http://thcjp.cnblogs.com"><img src="img/1.jpg" width="80" height="120" border="0" name="play" onMouseOver="on('play');return setmsg('我的教程博客 --> ')" onmouseout="off('play');return setmsg('');" /></a>

     <a href="http://www.cnblogs.com/thcjp/category/65304.html"><img src="img/2.jpg" width="80" height="120" border="0" name="stop" onmouseover="on('stop');return setmsg('天轰穿的博客之js入门系列教程--> ')" onmouseout="off('stop');return setmsg('')"/></a>

     <a href="http://www.cnblogs.com/thcjp/category/59325.html"><img src="img/3.jpg" width="80" height="120" border="0" name="pause" onmouseover="on('pause');return setmsg('VS2005控件系列教程 ')" onmouseout="off('pause');return setmsg('')"/></a>

     <a href="http://thcjp.cnblogs.com"><img src="img/4.jpg" width="80" height="120" border="0" name="rewind" onmouseover="on('rewind');return setmsg('ajax系列视频教程 --> ')" onmouseout="off('rewind');return setmsg('');" /></a></td>
  </tr>
</table>
</body>
</html>

转载注明出处：https://www.heiqu.com/wjgdxj.html

javascript入门图片对象(无刷新变换图片)\滚动图像

相关推荐