博客园-我的程序员之路-最新评论http://www.cnblogs.com/zhangsir/CommentsRSS.aspx学无止境zh-cnFri, 25 Jul 2008 10:06:42 GMTFri, 25 Jul 2008 10:06:42 GMTcnblogsre: js实现web中拖拽出矩形http://www.cnblogs.com/zhangsir/archive/2008/07/19/1092522.html#1261195zhangsirzhangsirSat, 19 Jul 2008 10:12:14 GMThttp://www.cnblogs.com/zhangsir/archive/2008/07/19/1092522.html#1261195
<!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" lang="gb2312">

<head>

<title> 代码实例：拖动对象 Drag Object (兼容:IE、Firefox、Opera ... )</title>

<meta http-equiv="content-type" content="text/html; charset=gb2312" />

<meta name="keywords" content="代码实例：拖动对象">

<meta name="description" content="最简短的拖动对象代码实例演示">

<style>

.dragAble {position:relative;cursor:move;}

</style>

<script language="javascript">

<!--

var ie=document.all;

var nn6=document.getElementById&&!document.all;

var isdrag=false;

var y,x;

var oDragObj;

　

function moveMouse(e) {

if (isdrag) {

oDragObj.style.top = (nn6 ? nTY + e.clientY - y : nTY + event.clientY - y)+"px";

oDragObj.style.left = (nn6 ? nTX + e.clientX - x : nTX + event.clientX - x)+"px";

return false;

}

}

　

function initDrag(e) {

var oDragHandle = nn6 ? e.target : event.srcElement;

var topElement = "HTML";

while (oDragHandle.tagName != topElement && oDragHandle.className != "dragAble") {

oDragHandle = nn6 ? oDragHandle.parentNode : oDragHandle.parentElement;

}

if (oDragHandle.className=="dragAble") {

isdrag = true;

oDragObj = oDragHandle;

nTY = parseInt(oDragObj.style.top+0);

y = nn6 ? e.clientY : event.clientY;

nTX = parseInt(oDragObj.style.left+0);

x = nn6 ? e.clientX : event.clientX;

document.onmousemove=moveMouse;

return false;

}

}

document.onmousedown=initDrag;

document.onmouseup=new Function("isdrag=false");

//-->

</script>

</head>

<body>

<img src="http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif" class="dragAble" / onclick="javascript:window.open(this.src);" style="cursor: pointer" alt="点此在新窗口浏览图片" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)">

<img src="http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif" class="dragAble" / onclick="javascript:window.open(this.src);" style="cursor: pointer" alt="点此在新窗口浏览图片" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)">

<img src="http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif"" target="_new">http://www.iecn.net/images/user_icons/2006/10/01/u_35653.gif" class="dragAble" / onclick="javascript:window.open(this.src);" style="cursor: pointer" alt="点此在新窗口浏览图片" onmousewheel="return bbimg(this)" onload="javascript:resizepic(this)"><br /><br />

<div style="border:1px solid #ff6d00;background:#ffd801;width:240px;padding:5px 0;" class="dragAble">这些都是可拖动对象</div>

</body>

　

　

</html>


zhangsir 2008-07-19 18:12 发表评论
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