jq 局部打印 printArea

js代码

(function($) {  
var printAreaCount = 0; 
$.fn.printArea = function() {  
var ele = $(this);  
var idPrefix = "printArea_";  
removePrintArea( idPrefix + printAreaCount ); 
printAreaCount++;  
var iframeId = idPrefix + printAreaCount; 
var iframeStyle = 'position:absolute;0px;height:0px;left:-500px;top:-500px;'; 
iframe = document.createElement('IFRAME'); 
$(iframe).attr({ style : iframeStyle, id    : iframeId });
document.body.appendChild(iframe); 
var doc = iframe.contentWindow.document;
$(document).find("link").filter(function(){  
return $(this).attr("rel").toLowerCase() == "stylesheet"; 
}).each(function(){
doc.write('<link type="text/css" rel="stylesheet" href="' +$(this).attr("href") + '" >'); 
});  
doc.write('<div class="' + $(ele).attr("class") + '">' + $(ele).html() + '</div>'); 
doc.close();  
var frameWindow = iframe.contentWindow; 
frameWindow.close(); 
frameWindow.focus(); 
frameWindow.print(); 
}  
var removePrintArea = function(id) 
{  
$( "iframe#" + id ).remove(); 
};  
})(jQuery); 

使用示例：

<input type="button" id="btnPrint" value="打印"/> <div id="printContent">要打印的内容区域<div>
<script type="text/javascript"> $(function(){         $("btnPrint").click(function(){ $("printContent").printArea(); }); }); </script>