<!DOCTYPE html>
<html>
<head>
<meta charset="UTF-8">
<title>Insert title here</title>
<script type="text/javascript">
function preview(oper)
{
if (oper <10){
bdhtml=window.document.body.innerHTML //获取当前页的html代码
sprnstr="<!--startprint"+oper+"-->" //设置打印开始区域
eprnstr="<!--endprint"+oper+"-->" //设置打印结束区域
prnhtml=bdhtml.substring(bdhtml.indexOf(sprnstr)+18)//从开始代码向后取html
prnhtml=prnhtml.substring(0,prnhtml.indexOf(eprnstr))//从结束代码向前取html
window.document.body.innerHTML=prnhtml
window.print()
window.document.body.innerHTML=bdhtml
} else {
window.print()
}
}
function xx(){
window.print()
}
</script>
</head>
<body>
<samp>预览功能可以使用谷歌浏览器，ie预览功能同上，其他好像不支持</samp>
<samp style="color: red">直接粘贴到页面(html)中就可以使用</samp>
<!--startprint1-->
<!--打印内容开始-->
<div id=sty>
<img alt="" src="http://img4.duitang.com/uploads/item/201401/25/20140125231152_VcdwM.jpeg"
style="width: 500pxheight: 500px">
</div>
<!--打印内容结束-->
<!--endprint1-->
<input type=button name='button_export' title='打印1' onclick=preview(1) value=打印图片>
<input type="button" value="打印整个网页" onclick="xx()">
</body>
</html>
核心部分就这些（起作用的？）:<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
<html>
<head>
<meta http-equiv="Content-Type" content="text/htmlcharset=utf-8" />
<script language="javascript">
function preview(){
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()
}
</script>
</head>
<body>
<form id="WebForm1" method="post" ><div>1234567890</div>
<center>本部分以上不被打印</center>
<!--startprint-->
<div align="center">
<table border="1">
<tr bordercolor="#FFFFFF">
<th bordercolor="#FFFFFF">销售单</th>
<th>工资单</th>
</tr>
<tr>
<td>销售单</td>
<td>销售123</td>
</tr>
</table>
</div>
<!--endprint-->
<center>本部分以下不被打印</center>
<div align="center">
<input type="button" name="print" value="预览并打印" onClick="preview()">
</div>
</form>
</body>
</html>
