I'm totally new to regular expressions and I'm trying to get something like this:
我对正则表达式完全不熟悉，我试图得到这样的东西：
["Group", "s1", "s2", "Group2"]
from a string:
从一个字符串：
string = "_GRP_Group||s1||s2||Group2||"
All I have now is:
我现在所拥有的只是：
word = re.findall(r'([^\|]+)', string)
which just leaves out the pipe and I get this:
刚刚离开管道，我得到了这个：
['_GRP_Group', 's1', 's2', 'Group2']
Is there a way to get rid of the _GRP_ prefix?
有没有办法摆脱_GRP_前缀？
2 个解决方案
#1
2
Based on your comments on other answers, it sounds like the _GRP_ prefix is a prefix to the string rather than to each individual split value?
根据您对其他答案的评论，听起来_GRP_前缀是字符串的前缀而不是每个单独的分割值？
Try this:
尝试这个：
string = "_GRP_Group||s1||s2||Group2||"
word = re.findall(r"(?:_GRP_)?([^|]+)", string)
#2
1
You don't need to use regular expressions to split the first string by || or remove the prefix _GRP_. You can just use split and slicing:
您不需要使用正则表达式将第一个字符串拆分为||或删除前缀_GRP_。您可以使用拆分和切片：
words = "_GRP_Group||s1||s2||Group2||"[5:].split('||')
The slice [5:] will exclude the first five characters from the string.
If you didn't know where _GRP_ would occur, you could use replace:
切片[5：]将从字符串中排除前五个字符。如果你不知道_GRP_会出现在哪里，你可以使用replace：
words = "_GRP_Group||s1||s2||Group2||".split('||')
words = [word.replace("_GRP_", "") for word in words]
#1
2
Based on your comments on other answers, it sounds like the _GRP_ prefix is a prefix to the string rather than to each individual split value?
根据您对其他答案的评论，听起来_GRP_前缀是字符串的前缀而不是每个单独的分割值？
Try this:
尝试这个：
string = "_GRP_Group||s1||s2||Group2||"
word = re.findall(r"(?:_GRP_)?([^|]+)", string)
#2
1
You don't need to use regular expressions to split the first string by || or remove the prefix _GRP_. You can just use split and slicing:
您不需要使用正则表达式将第一个字符串拆分为||或删除前缀_GRP_。您可以使用拆分和切片：
words = "_GRP_Group||s1||s2||Group2||"[5:].split('||')
The slice [5:] will exclude the first five characters from the string.
If you didn't know where _GRP_ would occur, you could use replace:
切片[5：]将从字符串中排除前五个字符。如果你不知道_GRP_会出现在哪里，你可以使用replace：
words = "_GRP_Group||s1||s2||Group2||".split('||')
words = [word.replace("_GRP_", "") for word in words]