When you are building URLs that should be legible for users and search engines and you do it automatically from the content, what's the best way to represent blank spaces? Hyphens (this is what StackOverflow uses)? Underscores? Any other? Does any of those make a different for SEO?When you are building URLs that should be legib
阅读背景：
在URL中表示空格的最佳字符是什么？
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