js 打印 iframe div 内容

function doPrint(){
var turl = document.getElementById("iframeid").src;
var newW = window.open(turl);
newW.print();
}

<div id='contect'>
ssssssssss
</div>
<script type="text/javascript">
/*<![CDATA[*/
print_ele_f('contect');
function print_ele_f(id_s)
{
var ele = document.getElementById(id_s);

var w = window.open('about:blank');
setTimeout(function(){
w.document.body.innerHTML = ele.innerHTML;
w.print();},100)
}
/*]]>*/
</script>