Intellij Search Regex，选择特定的捕获组

Question

我正在玩regex与intelllij的时刻，我想知道是否有可能使用捕获来选择一个特定组的所有发生。

12 330
13 450
1223 870
1213 900
regex: (^d+) (d+) 
and select the 
330 
450 
870 
900 
which are in the group 2

谢谢,)

Answer 1

您不需要组。使用

^d+ Kd+

参见正则表达式证明。

--------------------------------------------------------------------------------
^                        the beginning of the string
--------------------------------------------------------------------------------
d+                      digits (0-9) (1 or more times (matching
the most amount possible))
--------------------------------------------------------------------------------
' '
--------------------------------------------------------------------------------
K                       match reset operator
--------------------------------------------------------------------------------
d+                      digits (0-9) (1 or more times (matching
the most amount possible))