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jQuery makes mouse wheel operation picture zoom size

php中世界最好的语言Original: 2018-04-19 15:20:382462browse

This time I will bring you jQueryHow to make a mouse wheel operationPictureZoom size, jQuery makes a mouse wheel operation picture zoom sizeNotesYes Which ones, the following are practical cases, let’s take a look.

<!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>鼠标滚轮控制图片缩放</title>
<script type="text/javascript" src="jquery-1.7.2.min.js"></script>
<script type="text/javascript">
$(function() {
 function zoomImg(o) {
  var zoom = parseInt(o.style.zoom, 10) || 100;
  zoom += event.wheelDelta / 2; //可适合修改
  if (zoom > 0) o.style.zoom = zoom + '%';
 }
 $(document).ready(function() {
  $("img").bind("mousewheel",
  function() {
   zoomImg(this);
   return false;
  });
 });
})
</script>
</head>
<body>
<center>
<img src="1.jpg"/>
</center>
</body>
</html>

I believe you have mastered the method after reading the case in this article. For more exciting information, please pay attention to other related articles on the php Chinese website!

jQuery makes mouse wheel operation picture zoom size

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