<html
<head>
<style>
#div1 {width:100px; height:100px; background:yellow; position:absolute;}
.box{border: 1px solid black;position: absolute;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標(biāo)題文檔</title>
<script>
window.onload=function ()//凡是被拖拽的物體，其必須定位為absolute
{
  var oDiv=document.getElementById('div1');
  oDiv.onmousedown=function (ev)
  {
    var oEvent=ev||event;
    var disX=oEvent.clientX-oDiv.offsetLeft;
    var disY=oEvent.clientY-oDiv.offsetTop;

    var oNewDiv=document.createElement('div');
    oNewDiv.className='box';
    oNewDiv.style.width=oDiv.offsetWidth-2+'px';//將2px的邊框去掉
    oNewDiv.style.height=oDiv.offsetHeight-2+'px';
    
     oNewDiv.style.left=oDiv.offsetLeft+'px';
     oNewDiv.style.top=oDiv.offsetTop+'px';
    document.body.appendChild(oNewDiv);
    document.onmousemove=function (ev)
    {
      var oEvent=ev||event;
      oNewDiv.style.left=oEvent.clientX-disX+'px';
      oNewDiv.style.top=oEvent.clientY-disY+'px';
    };
    document.onmouseup=function ()
    {
      document.onmousemove=null;
      document.onmouseup=null;
      document.body.removeChild(oNewDiv);
      oDiv.style.left=oNewDiv.style.left;
      oDiv.style.top=oNewDiv.style.top;
    };
  };
};
</script>
</head>

<body>
<div id="div1">
</div>
</body>
</html>

2.關(guān)于窗口拖拉放大縮小的效果，就是在上面的div之中再包一個(gè)div。

<html
<head>
<style>
#div1 {width:10px; height:10px; background:url(images/1.gif); position:absolute;bottom: 0;right: 0}//拖拉的物體，改為圖片
#div2{width: 200px;height: 200px;position: relative;background: #ccc;}
.box{border: 1px solid black;position: absolute;}
</style>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>無標(biāo)題文檔</title>
<script>
window.onload=function ()//凡是被拖拽的物體，其必須定位為absolute
{
  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;

    var oNewDiv=document.createElement('div');
    //oNewDiv.className='box';
    oNewDiv.style.width=oDiv.offsetWidth-2+'px';
    oNewDiv.style.height=oDiv.offsetHeight-2+'px';
    
     oNewDiv.style.left=oDiv.offsetLeft+'px';
     oNewDiv.style.top=oDiv.offsetTop+'px';
    document.body.appendChild(oNewDiv);
    document.onmousemove=function (ev)
    {
      var oEvent=ev||event;
      oDiv2.style.width=oEvent.clientX-disX+'px';//這里是它的父級(jí)
      oDiv2.style.height=oEvent.clientY-disY+'px';
    };
    document.onmouseup=function ()
    {
      document.onmousemove=null;
      document.onmouseup=null;
      document.body.removeChild(oNewDiv);
      oDiv.style.left=oDiv2.style.left;
      oDiv.style.top=oDiv2.style.top;
    };
  };
};
</script>
</head>

<body>
<div id='div2'>
   <div id="div1">
   </div>
</div>
</body>
</html>

以上就是本文的全部?jī)?nèi)容，希望對(duì)大家的學(xué)習(xí)有所幫助。

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