挺不错的防复制代码

<script type="text/javascript">
document.body.oncopy = function () {
 setTimeout( function () {
  var text = clipboardData.getData("text");
  if (text) {
   text = text + "\r\n本文来自:中国剪报荐稿网中 国剪报荐稿门户 详细出处"+location.href; clipboardData.setData("text", text);
  }
    }, 100 )
}
</script>