<!DOCTYPE html>
<html>
<head>
<script src="http://libs.baidu.com/jquery/1.10.2/jquery.min.js">
</script>
<script>var id=getUuid();
$(document).ready(function(){
$("p").click(function(){
alert(id);
});
});
function getUuid(){
var len=32;//32长度var radix=16;//16进制var chars='0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('');var uuid=[],i;radix=radix||chars.length;if(len){for(i=0;i<len;i++)uuid[i]=chars[0|Math.random()*radix];}else{var r;uuid[8]=uuid[13]=uuid[18]=uuid[23]='-';uuid[14]='4';for(i=0;i<36;i++){if(!uuid[i]){r=0|Math.random()*16;uuid[i]=chars[(i==19)?(r&0x3)|0x8:r];}}}returnuuid.join('');
}</script>
</head>
<body>
<p>点我，生成UUID。</p>
</body>
</html>