用于提取节号和描述的正则表达式

根据你方展示的样品,请尝试以下内容。 在线演示如下: Online demo of regex

(?P<serial>(?:\d+\.)+)\s*(?P<description>\S+)

说明: 增加了对以上内容的详细解释。

(?P<serial>           ##Starting a named capturing group named serial here.
(?:\d+\.)+)           ##Starting a non capturing group which is looking for continuous occurrence of digits followed with dot with 1 or more occurrences of this combinations.
\s*                   ##Looking for 1 or more occurrences of spaces here.
(?P<description>\S+)  ##Starting a named capturing group named description here which has all values except spaces occurrences.