[英]Read file line by line and print if it contains two different strings
So I have a file called 'clears' and I want to see if a line contains two different strings that are in a list and if so to print those lines I cant get it to work. 因此,我有一个名为“ clears”的文件,我想查看一行是否包含列表中的两个不同的字符串,如果要打印这些行,则无法正常工作。
for pos in positions:
for line in open('clears'):
if pos[0] and pos[3] in line:
print line
I also tried f 我也试过f
or pos in positions:
for line in open('clears'):
if pos[0] in line and pos[3] in line:
print line
Thats what I tried but I get a TypeError: 'in <string>' requires string as left operand
I can get it to print if there is only one condition but I am not sure how to do if there is two. 那就是我尝试的方法,但是我遇到
TypeError: 'in <string>' requires string as left operand
,如果只有一个条件,我可以打印它,但是如果有两个条件,我不确定该怎么做。
Thanks 谢谢
I guess you mean this (EDIT, back to first version): 我想你是说这个(编辑,回到第一个版本):
for pos in positions:
for line in open('clears'):
if pos[0] in line and pos[3] in line:
print line
But also, the elements of pos
must be strings. 但是,
pos
的元素必须是字符串。
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