不缓存 JS

方法一：告诉浏览器不要缓存（不一定好使）

<meta http-equiv="Pragma" content="no-cache"> 
<meta http-equiv="Cache-Control" content="no-cache"> 
<meta http-equiv="Expires" content="-1">

方法二：动态 script 创建

<script>document.write('<script src="build/js/script.min.js?' + Math.rendom() + '">\x3C/script>')</script>

或者

var s = document.createElement('script');
s.setAttribute('src', '<script src="build/js/script.min.js?' + Math.rendom());
s.setAttribute('type', 'text/javascript');
document.getElementsByTagName('head')[0].appendChild(s);