//打印的方法
function doPrint() {
bdhtml = window.document.body.innerHTML;
sprnstr = "<!--startprint-->";
eprnstr =
"<!--endprint-->";
prnhtml =
bdhtml.substr(bdhtml.indexOf(sprnstr) + 17);
prnhtml =
prnhtml.substring(0, prnhtml.indexOf(eprnstr));
window.document.body.innerHTML = prnhtml;
window.print();
}
<!-- 页面需引用的地方-->
<!--startprint-->
<!-- 需打印的数据 -->
<div id="printData"></div>
<!--endprint-->