JS文件提速方法: ( Z8 }$ m- E, o- ]4 a
把通常加载方式:<script src="dancead.js"></script> & ^5 V1 L" G6 Z$ b
改变成:<script type="text/javascript"> document.write("<scr"+"ipt src=\"dancead.js\"></sc"+"ript>") ; </script> & k# Q r4 e' @
( A8 u/ r$ N; n1 I& I; h3 iJS文件延迟加载方法: 9 y, W* Q- y8 e1 m( o$ G' U
JS延迟加载代码如下:<script language="JavaScript" src="" id="ToTwo"></script>
# [8 w" S9 Q* [- Z7 q$ N+ s<script> setTimeout("document.getElementById('ToTwo').src='http://www.xp37.com/include.js'; ",3000);//延时3秒 </script> |