仅打印"<!--startprint-->和<!--endprint-->之间的内容。
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="aaa.aspx.cs" Inherits="aaa" Title="无标题页" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head id="Head1" runat="server">
<title>aaa</title>
<script language=javascript>
function doPrint() {
var bdhtml=window.document.body.innerHTML;
var sprnstr= "<!--startprint-->";
var eprnstr= "<!--endprint-->";
var start= bdhtml.indexOf(sprnstr)+17;
var end = bdhtml.indexOf(eprnstr);
var prnhtml=bdhtml.substring(start,end);
window.document.body.innerHTML=prnhtml;
window.print();
}
</script>
</head>
<body>
<form id="form1" runat="server">
<!--startprint-->
<table width="1005">
<tr>
<td width="750" height="500" bgcolor="#FFCC99">
Print this.
</td>
</tr>
</table>
<!--endprint-->
<input type="button" value=" 打印 " onclick="doPrint()">
</form>
</body>
</html>