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<html>
<head>
<script language="javascript">
function printdiv(printpage)
{
var headstr = "<html><head><title></title></head><body>";
var footstr = "</body>";
//var newstr = document.all.item(printpage).innerHTML;
var newstr = document.getElementById(printpage).innerHTML;
var oldstr = document.body.innerHTML;
document.body.innerHTML = headstr+newstr+footstr;
window.print();
document.body.innerHTML = oldstr;
return false;
}
</script>
<title>div print</title>
</head>
<body>
//HTML Page
//Other content you wouldn‘t like to print
<input name="b_print" type="button" class="ipt" onClick="printdiv(‘div_print‘);" value=" Print ">
<div id="div_print">
<h1 style="Color:Red">The Div content which you want to print</h1>
<div style="page-break-before:always;"><br /></div>
<h1 style="Color:Red">The Div content which you want to print</h1>
<div style="page-break-before:always;"><br /></div>
</div>
//Other content you wouldn‘t like to print
//Other content you wouldn‘t like to print
</body>
</html>
原理：大家window.print（）函数可以打印网页，但是通常我们并不想打印整个页面的所有内容。这个时候就可以利用js取到原来整个页面的内容，和需要打印的区域（div)的内容，然后运行函数，将页面替换成只有div中的内容，执行print()函数，然后再将页面还原。
控制分页只需要这一条语句：<div style="page-break-before:always;"><br /></div>
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原文地址：http://www.cnblogs.com/doubilaile/p/4866838.html
