python - 如何使用python查找连续行

Question

我有一个文件，如下所示:

the 1 file is:
none
the 2 file is:
a-h-f
the 3 file is:
a-h-p
the 4 file is:
none

我想用python知道哪两个连续文件是竞争的，而不是没有。以这个文件为例，“第2个文件”和“第3个文件”是连续的并且有内容。我期望的结果是:

   the 2 file is:
   a-h-f
   the 3 file is:
   a-h-p

请有人给我一些提示。谢谢。

Answer 1

将您的行放入列表中，即可以是 lines = f.readlines() 其中 f 是文件对象，或者:

lines = '''the 1 file is:
none
the 2 file is:
a-h-f
the 3 file is:
a-h-p
the 4 file is:
none
'''.splitlines()

然后:

for t in zip(*[lines[i::2] for i in range(4)]):
    if 'none' not in t:
        # t is ('the 2 file is:', 'a-h-f', 'the 3 file is:', 'a-h-p')
        # do something with it, e.g.:
        for x in t:
            print(x)

打印:

the 2 file is:
a-h-f
the 3 file is:
a-h-p