python比较文本文件-如果不打印 [英] python comparing text file - if else printing
问题描述
我有4个以下格式的文本文件
I have 4 text files in the following formats
keycountry.txt
keycountry.txt
UK USA Germany
country.txt
country.txt
Brexit - UK
USA UK Relations
France win world cup
keylink.txt
keylink.txt
www.abc.com
www.ddd.com
www.eee.com
link.txt
www.abc.com
www.eee.com
代码:
import re
keycountryfile = "keycountry.txt"
countryfile = "country.txt"
links = open('links.txt', 'r')
links_data = links.read()
links.close()
keys = open('keylink.txt', 'r')
keys_data = keys.read()
keys.close()
keys_split = keys_data.splitlines()
print('LINKS')
for url in keys_split:
if url in links_data:
print(url)
print("matching")
else:
print("Not matching")
keys = set(key.lower() for key in
re.findall(r'\w+', open(keycountryfile , "r").readline()))
print("COUNTRY")
with open(countryfile) as f:
for line in f:
words = set(word.lower() for word in re.findall(r'\w+', line))
if keys & words:
print(line, end='')
print("matching")
else:
print("Not matching")
在代码中print("matching")
重复多次.我知道,因为它在循环内,所以会重复,当没有匹配项时,不会显示print("Not matching")
.我尝试将打印语句放入循环的内部和外部,但是我无法解决该问题.
In the code print("matching")
is repeating multiple times. I know since it's inside the loop it will repeat, print("Not matching")
is not displaying when there are no matches. I tried putting the print statements inside and outside the loop but I just wasn't able to rectify the problem.
如果匹配,则输出应类似于:
The output, if it matches, should be like:
LINKS
www.abc.com
www.eee.com
matching
COUNTRY
Brexit-UK
USA UK Relations
matching
如果输出不匹配,则应类似于:
The output, if it doesn't match, should be like:
LINKS
Not matching
COUNTRY
Not matching
如何处理?
推荐答案
似乎您的问题一方面与for-else构造有关.否则,其他将始终以您的代码执行.
Seems like your issue is on one hand related with the for-else construct. Else will always get executed in your code.
此外,以kaihami的答案为基础,要实现您所描述的内容,您需要将匹配的链接/行存储在单独的结构(如列表)中,然后检查该列表是否为空以打印匹配的条目或字符串"Not"匹配",这是我建议的解决方案:
Moreover, building upon kaihami's answer, to achieve what you are describing you need to store the matching links/lines in a separate structure like a list and then check if that list is empty to print the matched entries or the string "Not matching", here is my proposed solution:
import re
keycountryfile = "keycountry.txt"
countryfile = "country.txt"
with open('links.txt', 'r') as links:
links_data = [line.strip() for line in links.readlines()]
with open('keylink.txt', 'r') as keys:
keys_links = set([line.strip() for line in keys.readlines()])
matching_links = []
for url in links_data:
if url in keys_links:
matching_links.append(url)
print('LINKS')
if matching_links:
print('\n'.join(matching_links))
print("matching")
else:
print("Not matching")
print()
with open(keycountryfile , "r") as f:
country_keys = set(key.lower() for key in
re.findall(r'\w+', f.readline()))
matching_lines = []
with open(countryfile) as f:
for line in f:
words = set(word.lower() for word in re.findall(r'\w+', line))
if country_keys & words:
matching_lines.append(line.strip())
print("COUNTRY")
if matching_lines:
print('\n'.join(matching_lines))
print("matching")
else:
print("Not matching")
这篇关于python比较文本文件-如果不打印的文章就介绍到这了,希望我们推荐的答案对大家有所帮助,也希望大家多多支持IT屋!