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js css后面所带参数含义介绍_基础知识

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Release： 2016-05-16 17:25:26
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浏览一些网站，经常看到网页链接的js css后面总是带有一些参数，今天详细查了一下：

出现此种情况，主要有两个可能:

脚本不存在，而是服务器端动态生成的，带一个参数表示生成脚本文件的版本号。

为加快响应速度，有些客户端会缓存相应的js css，因此每次升级了js css 版本号后，改变相应的版本号，客户端浏览器会自动去更新的新版本的js或是css

第二种情况应该是最多的

Related labels：
js
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