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js實現滑鼠滾輪控製圖片縮放效果的方法，js滑鼠滾輪
本文執行個體講述了js實現滑鼠滾輪控製圖片縮放效果的方法。分享給大家供大家參考。具體實現方法如下：
複製代碼 代碼如下:<!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-Language" content="zh-cn" />
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" >
<title>用滑鼠滾輪滾動控製圖片的縮小放大</title>
<script language="javascript">
function bbimg(o){
var zoom=parseInt(o.style.zoom, 10)||100;
zoom+=event.wheelDelta/12;
if (zoom>0) o.style.zoom=zoom+'%';
return false;
}
</script>
</head>
<body>
<p>將滑鼠放在圖片上，點擊一下，然後滾動滑鼠滾輪試試看</p>
<p><img border="0" src="/images/m01.jpg" onmousewheel="return bbimg(this)"></p>
<p> </p>
<p> </p>
<p> </p>
</body>
</html>
希望本文所述對大家的javascript程式設計有所協助。
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