.net - 文字間の正規表現 - 最後の一致

Question

lastとの間の値に一致する正規表現を探しています\_

例：

入力:\\\ezbe.local\folder1\folder2\folder3\33248a-48596-a54qsd-4d7d98_2

出力:33248a-48596-a54qsd-4d7d98

Answer 1

それは

[^\\]*(?=_[^\\]*$)

説明：

[^\\]*   # Match any number of non-backslash characters
(?=      # if the following is true after the matched text:
 _       # There is a _
 [^\\]*  # followed only by non-backslash characters
 $       # until the end of the string.
)        # End of lookahead assertion