网站清缓存三个方案

1.meta清HTML缓存，代码如下

<meta http-equiv="Cache-Control" content="no-cache, no-store, must-revalidate" />
<meta http-equiv="Pragma" content="no-cache" />
<meta http-equiv="Expires" content="0" />

2.文件名加随机数/时间戳后缀（由PHP实现）

HTML如下

<script class="clear_cache" src="__ROOT__/js/script.js?s=<?php echo rand('10000','99999');?>"></script>

PHP如下

<?php echo rand('10000','99999');?>

3.通过JS再加随机数/时间戳，实现重载（jquery实现）

HTML如下

<script class="clear_cache" src="__ROOT__/js/script.js?s=<?php echo rand('10000','99999');?>"></script>
<link class="clear_cache" rel="stylesheet" type="text/css" href="__ROOT__/css/style.css?s=<?php echo rand('10000','99999');?>" />

jquery如下

$(document).ready(function(){
	$('script.clear_cache').each(function(){
	   var script_url=$(this).attr('src')+Date.now();
	   $(this).attr('src',script_url);
	});
	$('link.clear_cache').each(function(){
		var link_url=$(this).attr('href')+Date.now();
		$(this).attr('href',link_url);
	});
});