JS打印网页上指定的id区域内容
demo示例：
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>JS打印网页上指定的id区域内容</title>
<script type="text/javascript" language="javascript">
function printPage(){
var newWin=window.open('about:blank', '', '');
var titleHTML=document.getElementById("doctitle").innerHTML;
newWin.document.write(titleHTML);
newWin.document.location.reload();
newWin.print();
}
</script>
</head>
<body>表格外的区域是不打印的哦
<br>
<br>
<div>
<img src="https://static.cnblogs.com/images/adminlogo.gif" />
</div>
<div id="doctitle" class="doctitle">
<table width="100%" border="1" cellspacing="1" cellpadding="0">
<tr>
<td width="105">站名</td>
<td width="181">网址</td>
<td width="112">说明</td>
</tr>
<tr>
<td>DIVCSS5</td>
<td>www.divcss5.com</td>
<td>CSS学习</td>
</tr>
<tr>
<td>CSS5</td>
<td>www.css5.com.cn</td>
<td>CSS切图</td>
</tr>
</table>
</div>
<br>
<br>
<button name="test" type="button" onclick="printPage()" value="val">只打印表格中的内容</button>
</body>
</html>
