c# - Regex: Search for a repeating group

Question

I have a string that contains this group :

"|__|" or "|__|__|__|..."

With my pattern ([\|__|]{3,}) It will get the desired result but it captures different strings too, like this *"Name _____"*

Q: How can I capture only this kind of repeating group "|__|__|..." for this string ?

"Name _________ Age___ Postal Code|__|__|__|__|__|"

Answer 1

[\|__|]是一个字符类，匹配一个 字符（|或_；\这里不需要，将被忽略）。

你需要一个小组：

(\|__){3,}\|

（尽管严格来说，非捕获组将是这里最明智（但可读性稍差）的构造：）

(?:\|__){3,}\|