jquery实现拖拽div
<!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>无标题文档</title>
<script src="jquery-1.7.2.min.js" type="text/javascript" ></script>
<style type="text/css">
*{margin:0;padding:0;}
#div1{width:100px;height:100px;background:red;position:relative;}
</style>
<script>
$(function(){
var disX=0;
var disY=0;
$('div').mousedown(function(ev){
disX=ev.pageX-$(this).offset().left;
disY=ev.pageY-$(this).offset().top;
$(document).mousemove(function(ev){
$('div').css('left',ev.pageX-disX);
$('div').css('top',ev.pageY-disY);
});
$(document).mouseup(function(){
$(document).off();
});
return false;
});
});
</script>
</head>
<body>
<div id="div1"></div>
</body>
</html>