Should you use a dash or an underscore in URLs? Well, the answer depends on a few things and is not that simple. A simple Google search for “dash vs underscore” will give you articles that clearly favor dashes (also called hyphens) and tell you to avoid underscore in URLs. But a ...
hyphen vs en dash vs em dash hyphen 就是减, 用于把字连起来 比如back-up en dash 用于 x to y 比如10:00AM – 11:00AM em dash 很少用 目前看到的是 google ads 用来表示 empty value 常用symbol - hyphen –en dash (alt + 0150) — em dash (alt+ 0151) ° degree (alt + 0176) ² ...