<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Document</title>
</head>
<body>
<button type="button" onclick="doPrint()">打印</button></div>
<div>
哈哈
</div>
<script type="text/javascript">
function doPrint() {
alert(66666666666);
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();
window.document.body.innerHTML=bdhtml;//重新给页面内容赋值；
return false;
}
</script>
</body>
</html>
