输入文件可能不存在,或者该用户可能没有这个文件的读权限。
The input file might not exist, or this user might not have permission to read it.
如果 CDN 上没有这个内容,那么它可以从原始 服务器获取内容,然后缓存并返回给用户。
If the CDN does not have the asset, it pulls the asset from the origin before caching and passing the asset along to the user.
在我看来, 由于主流笔记本的性能、散热设计较好,因此大部分用户并没有意识到火狐有这个毛病。
My theory is that most users don't notice this because in mainstream laptops, this isn't an issue.
Notice in this program I have not checked whether or not the user actually provided input.
就拿这个程序说事吧,我们根本没有检查,用户到底有没有输入。
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