python - 如何在python中使用正则表达式提取两个子字符串之间的字符？

Question

例如-我的字符串是:

str1="[00:00:0.047] [TestRunner] [Main] [sleep_assoc] > [Iteration:0][00:00:0.063] [TestRunner] [Main] [sleep_assoc] > [!Iteration:0][00:00:0.063]"

我想将 [Iteration:0] 和 [!Iteration:0] 之间的所有字符存储到字符串变量中。

Answer 1

您可以使用 .*? 来完成此操作，它匹配 [Iteration:0] 中的所有字符，直到找到 [!Iteration:0]:

In [1]: import re

In [2]: s = '[00:00:0.047] [TestRunner] [Main] [sleep_assoc] > [Iteration:0][00:00:0.063] [TestRunner] [Main] [sleep_as
   ...: soc] > [!Iteration:0][00:00:0.063]'

In [3]: m = re.search(r'\[Iteration:0](.*?)\[!Iteration:0]', s)

In [4]: res = m.group(1)

In [5]: res
Out[5]: '[00:00:0.063] [TestRunner] [Main] [sleep_assoc] > '