正则表达式正向前瞻仍包括结果中的表达式

Question

这是我的正则表达式

'(?<=1\)).*'

我正在努力匹配

A good strategy is a set of actions that enables a firm to achieve its own internal goals without regard to the external environment.

但它不断返回1），我不希望它像这样

1) A good strategy is a set of actions that enables a firm to achieve its own internal goals without regard to the external environment.

我如何只回答这个问题

编辑：由于我的错误无法复制，我正在共享完整的代码

searchCounter = 1

bookDict = {}

with open ('StratMasterKey.txt', 'rt') as myfile:

for line in myfile:
    question_pattern = re.compile((rf'(?<={searchCounter}\)).*'), re.IGNORECASE)
    if question_pattern.search(line) != None: 

        bookDict[searchCounter] = line 
        searchCounter +=1

Answer 1

你的正则表达式很好，并且匹配正确的东西。问题是，在测试匹配后，使用原始行而不是匹配部分。改为这样做：

searchCounter = 1

bookDict = {}

with open ('StratMasterKey.txt', 'rt') as myfile:

for line in myfile:
    question_pattern = re.compile((rf'(?<={searchCounter}\)).*'), re.IGNORECASE)
    result = question_pattern.search(line)
    if result != None: 

        bookDict[searchCounter] = result[0] 
        searchCounter +=1