jq 获取元素的宽度时，如何取得小数部分

 1 <!DOCTYPE html>
 2 <html>
 3 <head>
 4     <title></title>
 5     <meta name="article" id="articlelink" content="" />
 6     <meta name="author" content="" />
 7     <script src="js/jquery-1.11.3.min.js" type="text/javascript"></script>
 8     <script>    
 9         $(function(){ 
10             console.log(parseFloat($(".test").attr("style").split('width:')[1]));
11         });
12     </script>
13 </head>
14 <body>    
15     <div class="test" style="width:333.333px;"></div>    
16 </body>
17 </html>

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