<script>
function myPrint(obj){
    var newWindow=window.open("列印視窗","_blank");//列印視窗要換成頁面的url
    var docStr = obj.innerHTML;
    newWindow.document.write(docStr);
    newWindow.document.close();
    newWindow.print();
    newWindow.close();
}
</script>
<div id="print">
<hr />
   列印演示區域,點選列印後會在新視窗載入這裡的內容！
<hr />
</div>
<button onclick="myPrint(document.getElementById('print'))">打 印</button>