标签：style blog http io ar os sp java strong
一个非常简单的例子：
<!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>jQuery 版“元素拖拽改变大小”原型 </title>
<script type="text/javascript" src="../js/jquery-1.7.1.js"></script>
<script type="text/javascript">
/*
* jQuery.Resize by wuxinxi007
* Date: 2011-5-14
* blog : http://wuxinxi007.cnblogs.com/
*/
$(function(){
//绑定需要拖拽改变大小的元素对象
bindResize(document.getElementById(‘test‘));
});
function bindResize(el){
//初始化参数
var els = el.style,
//鼠标的 X 和 Y 轴坐标
x = y = 0;
//邪恶的食指
$(el).mousedown(function(e){
//按下元素后，计算当前鼠标与对象计算后的坐标
x = e.clientX - el.offsetWidth,
y = e.clientY - el.offsetHeight;
//在支持 setCapture 做些东东
el.setCapture ? (
//捕捉焦点
el.setCapture(),
//设置事件
el.onmousemove = function(ev){
mouseMove(ev || event)
},
el.onmouseup = mouseUp
) : (
//绑定事件
$(document).bind("mousemove",mouseMove).bind("mouseup",mouseUp)
)
//防止默认事件发生
e.preventDefault()
});
//移动事件
function mouseMove(e){
//宇宙超级无敌运算中...
els.width = e.clientX - x + ‘px‘,
els.height = e.clientY - y + ‘px‘
}
//停止事件
function mouseUp(){
//在支持 releaseCapture 做些东东
el.releaseCapture ? (
//释放焦点
el.releaseCapture(),
//移除事件
el.onmousemove = el.onmouseup = null
) : (
//卸载事件
$(document).unbind("mousemove", mouseMove).unbind("mouseup", mouseUp)
)
}
}
</script>
<style type="text/css">
#test{
position:absolute;
top:0;left:0;
width:200px;
height:100px;
background:#f1f1f1;
text-align:center;
line-height:100px;
border:1px solid #CCC;
cursor:move;
}
</style>
</head>
<body>
<div id="test">dgdg</div>
</body>
</html>
标签：style blog http io ar os sp java strong
原文地址：http://blog.csdn.net/rj532029887/article/details/41695977
