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从列表元素捕获子字符串

filter list string regex python

shekharsabale · 技术社区 · 2 年前

    ['Communcation between: ACC_Verkehrssinn and SG_ACC_22\nUsing testing method: MinMaxMid', 
     'Communcation between: ACC_Status_Laengs and SG_ACC_22\nUsing testing method: MinMaxMid',
     'Signal Name:WLA_FC1_Obj10angleLeft\nCommuncation between: SG_WLA_FC1_Obj01_30 and 
      SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid', 
     'Signal Name:WLA_FC1_Obj10angleRight\nCommuncation between: SG_WLA_FC1_Obj01_30 and 
      SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid']

WLA_FC1_Obj10angleLeft
WLA_FC1_Obj10angleRight

3 回复 | 直到 2 年前

Tim Biegeleisen 2 年前

我们可以在这里使用列表理解:

inp = ['Communcation between: ACC_Verkehrssinn and SG_ACC_22\nUsing testing method: MinMaxMid', 'Communcation between: ACC_Status_Laengs and SG_ACC_22\nUsing testing method: MinMaxMid', 'Signal Name:WLA_FC1_Obj10angleLeft\nCommuncation between: SG_WLA_FC1_Obj01_30 and SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid', 'Signal Name:WLA_FC1_Obj10angleRight\nCommuncation between: SG_WLA_FC1_Obj01_30 and SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid']
output = [re.search(r'Signal Name:\s*(\S+)', x).group(1) for x in inp if 'Signal Name:' in x]
print(output)

此打印:

['WLA_FC1_Obj10angleLeft', 'WLA_FC1_Obj10angleRight']

Shrirang Mahajan 2 年前

mylist = ['Communcation between: ACC_Verkehrssinn and SG_ACC_22\nUsing testing method: MinMaxMid', 
     'Communcation between: ACC_Status_Laengs and SG_ACC_22\nUsing testing method: MinMaxMid',
     'Signal Name:WLA_FC1_Obj10angleLeft\nCommuncation between: SG_WLA_FC1_Obj01_30 and SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid', 
     'Signal Name:WLA_FC1_Obj10angleRight\nCommuncation between: SG_WLA_FC1_Obj01_30 and SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid']

values = []
for mystr in mylist:
    if mystr.find("Signal Name:") != -1:
        mystr = mystr[12:]
        index = mystr.find("\n")
        mystr = mystr[:index]
        values.append(mystr)

print(values)

输出:

['WLA_FC1_Obj10angleLeft', 'WLA_FC1_Obj10angleRight']

输出保存在 values

DrCorgi 2 年前

我们可以将所有字符串组合成一个大字符串,并使用re。findall()搜索单词“Signal Name:”和“\n”之间的所有单词

希望这有帮助。

import re
strings = ['Communcation between: ACC_Verkehrssinn and SG_ACC_22\nUsing testing method: MinMaxMid', 
     'Communcation between: ACC_Status_Laengs and SG_ACC_22\nUsing testing method: MinMaxMid',
     'Signal Name:WLA_FC1_Obj10angleLeft\nCommuncation between: SG_WLA_FC1_Obj01_30 and SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid', 
     'Signal Name:WLA_FC1_Obj10angleRight\nCommuncation between: SG_WLA_FC1_Obj01_30 and SG_WLA_FC1_Obj01_30\nUsing testing method: MinMaxMid']
all_strings = ''.join(strings)
print(re.findall("Signal Name:(.*)\n", all_strings))

输出

['WLA_FC1_Obj10angleLeft', 'WLA_FC1_Obj10angleRight']