妙味——拖拽改变大小

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<html xmlns="http://www.w3.org/1999/xhtml" xml:lang="en">
<head>
<meta http-equiv="Content-Type" content="text/html;charset=UTF-8">
<title>Document</title>
<style>
#div1{width: 10px;height: 10px;background: red;position: absolute;bottom: 0;right: 0;}
#div2{width: 200px;height: 150px;background: #eee;position: relative;}
</style>
<script>
window.onload=function(){
    var oDiv=document.getElementById('div1');
    var oDiv2=document.getElementById('div2');

    oDiv.onmousedown=function(ev)
    {
        var oEvent=ev||event;
        var disX=oEvent.clientX-oDiv.offsetLeft;
        var disY=oEvent.clientY-oDiv.offsetTop;

        document.onmousemove=function(ev)
        {
            var oEvent=ev||event;

            oDiv2.style.width=oEvent.clientX-disX+oDiv.offsetWidth+'px';
            oDiv2.style.height=oEvent.clientY-disY+oDiv.offsetHeight+'px';
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        {
            document.onmousemove=null;
            document.onmouseup=null;
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    };
};
</script>
</head>
<body>
<div id="div2">
    <div id="div1"></div>
</div>
</body>
</html>
高否？富否？帅否？否？滚去学习！