window.print打印-如果要打印的页面排版和原web页面相差很大
第三种方法：如果要打印的页面排版和原web页面相差很大，采用此种方法。点打印按钮弹出新窗口，把需要打印的内容显示到新窗口中，在新窗口中调用window.print()方法，然后自动关闭新窗口。window.print可以打印网页，但有时候我们只希望打印特定控件或内容，怎么办呢？
首先我们可以把要打印的内容放在div中，然后用下面的代码进行打印。
<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 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>
//Other content you wouldn't like to print
//Other content you wouldn't like to print
</body>
</html>
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