由于浏览器缓存相同的链接，您应该在url末尾添加一个随机数。 new Date(). gettime()生成一个不同的数字。

只需添加新的Date().getTime()链接结束 调用

'https://stackoverflow.com/questions.php?' + new Date().getTime()

输出:https://stackoverflow.com/questions.php?1571737901173

在PHP中，你也可以强制每小时重新加载一次代码，就像这样:

<?php
echo '<script language="JavaScript" src="js/myscript.js?token='.date('YmdH').'">';
?>

or

<script type="text/javascript" src="js/myscript.js?v=<?php echo date('YmdHis'); ?>"></script>

Maybe "clearing cache" is not as easy as it should be. Instead of clearing cache on my browsers, I realized that "touching" the file will actually change the date of the source file cached on the server (Tested on Edge, Chrome and Firefox) and most browsers will automatically download the most current fresh copy of whats on your server (code, graphics any multimedia too). I suggest you just copy the most current scripts on the server and "do the touch thing" solution before your program runs, so it will change the date of all your problem files to a most current date and time, then it downloads a fresh copy to your browser:

<?php
    touch('/www/control/file1.js');
    touch('/www/control/file2.js');
    touch('/www/control/file2.js');
?>

.．.剩下的程序…

我花了一些时间来解决这个问题(因为许多浏览器对不同的命令有不同的行为，但它们都检查文件的时间，并将其与浏览器中下载的副本进行比较，如果日期和时间不同，将进行刷新)，如果你不能按照假设的正确方式进行，总有另一种可用的更好的解决方案。祝你露营愉快。

裁判:https://developer.mozilla.org/en-US/docs/Web/API/Cache/delete

Cache.delete ()

方法

语法:

cache.delete(request, {options}).then(function(found) {
  // your cache entry has been deleted if found
});

请不要提供错误的信息。 缓存api是一种不同于http缓存类型的缓存

当服务器发送正确的头文件时，HTTP缓存被触发，你不能用javasvipt访问。

另一方面，缓存api在你想要的时候被触发，它在与service worker一起工作时很有用，所以你可以从这种类型的缓存中交叉请求和回答它 参见:插图1插图2课程

你可以使用这些技巧让你的用户总是有新鲜的内容:

Use location.reload(true) this does not work for me, so I wouldn't recomend it. Use Cache api in order to save into the cache and intersect the request with service worker, be carefull with this one because if the server has sent the cache headers for the files you want to refresh, the browser will answer from the HTTP cache first, and if it does not find it, then it will go to the network, so you could end up with and old file Change the url from you stactics files, my recomendation is you should name it with the change of your files content, I use md5 and then convert it to string and url friendly, and the md5 will change with the content of the file, there you can freely send HTTP cache headers long enough

我建议你看第三部

或者你可以通过服务器用file_get_contts读取js文件，然后在js内容的头中放入echo