JS文件提速方法:
6 f& F: n$ J; D9 e$ R( [把通常加载方式:<script src="dancead.js"></script>
: Y( g: W( H- j# M4 B改变成:<script type="text/javascript"> document.write("<scr"+"ipt src=\"dancead.js\"></sc"+"ript>") ; </script>
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JS文件延迟加载方法:
. T5 M; d9 Z% Q& p }% ^0 C) Y8 I$ IJS延迟加载代码如下:<script language="JavaScript" src="" id="ToTwo"></script> 4 w1 u2 S3 |6 v
<script> setTimeout("document.getElementById('ToTwo').src='http://www.xp37.com/include.js'; ",3000);//延时3秒 </script> |