假设我有这样的文本:
www.something.com
get the 2 above
www.somethingss.com
get the 2 above
www.somethingssss.com
get the 2 above
也许是这样的:
for a in text:
if 'get the 2 above' in a:
get 2 above
我该怎么做？
请您参考如下方法:
假设上面是一个字符串:
s = '''www.something.com
get the 2 above
www.somethingss.com
get the 2 above
www.somethingssss.com
get the 2 above'''
s = s.splitlines()
for i, line in enumerate(s):
if 'get the 2 above' in line:
print s[i-1], s[i-2]
s.splitlines() 移除换行符；如果您想保留它们，请传递 True，如 s.splitlines(True)(感谢 Sven Marnach)。
要从文件中获取行列表，您可以这样做:
with open('myfile.txt', 'r') as f:
s = f.readlines()
