第1个回答 2018-07-27
# 文件不很大的话:
def findstrinfile(filename, lookup):
return lookup in open(filename,'rt').read()
# 对付大文件:
def findstrinlargefile(filename, lookup):
with open(filename, 'rt') as handle:
for ln in handle:
if lookup in ln:
return True
else:
return False本回答被网友采纳