原文 http://www.cnblogs.com/top5/archive/2011/10/07/2200922.html
 

对于非ie浏览器他是用flash来实现的,js代码如下:

 

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    <script type="text/javascript">
    function copy_code(copyText) 
    {
        if (window.clipboardData) 
        {
            window.clipboardData.setData("Text", copyText)
        } 
        else 
        {
            var flashcopier = 'flashcopier';
            if(!document.getElementById(flashcopier)) 
            {
              var divholder = document.createElement('div');
              divholder.id = flashcopier;
              document.body.appendChild(divholder);
            }
            document.getElementById(flashcopier).innerHTML = '';
            var divinfo = '<embed src="../js/_clipboard.swf" FlashVars="clipboard='+encodeURIComponent(copyText)+'" width="0" height="0" type="application/x-shockwave-flash"></embed>';
            document.getElementById(flashcopier).innerHTML = divinfo;
        }
      alert('copy成功!');
    }
    </script>
    
    <input id="inputTest" type="button" value="测试" onclick="copy_code('拷贝成功!帆船书会http://www.fanchuanbook.com')"  />
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那个flash文件从这里下载:下载