Copy Code code as follows:
<script language= "javascript" type= "Text/javascript" >
To prevent JS file caching, later updates will no longer require users to delete IE files and other operations.
var now=new Date ();
var number = Now.getyear (). ToString () +now.getmonth (). ToString () +now.getdate (). ToString () +now.gethours (). ToString ( ) +now.getminutes (). ToString () +now.getseconds (). ToString ();
document.write (' <scr ' + ' IPT language= "JavaScript" type= "Text/javascript" src= "Jb51net.js"?) +number+ "" ></scr ' + ' ipt> ');
</script>
The principle is actually through the fixed address, plus a different value of the date number to achieve the purpose of duplication of address, so that the browser to load the real-time, do not read files from the cache.
It is very useful for dynamic verification code and so on when you need to load files multiple times.
The actual application example of this station http://www.jb51.net/tools/files.shtml
