在 Python 中生成包含两个 f 字符串替换的 url 列表

Question

我正在尝试通过循环两个单词列表来生成 url 列表。我可以通过 f-string 做一个，但我不太确定如何同时做两个。有什么建议吗？

tag_names = ['business', 'science', 'technology']
domain_names = ['bbc', 'cnn', 'nytimes']

for domain in domain_names:
    print(f'www.{domain}.com/{tag}')

预期结果

www.bbc.com/business
www.bbc.com/science
www.bbc.com/technology
www.cnn.com/business
www.cnn.com/science
www.cnn.com/technology
www.nytimes.com/business
www.nytimes.com/science
www.nytimes.com/technology

Answer 1

您可以使用 itertools.product 和列表理解：

import itertools

tag_names = ['business', 'science', 'technology']
domain_names = ['bbc', 'cnn', 'nytimes']

[f'www.{domain}.com/{tag}' for domain, tag in itertools.product(domain_names, tag_names)]

输出：

['www.bbc.com/business',
 'www.bbc.com/science',
 'www.bbc.com/technology',
 'www.cnn.com/business',
 'www.cnn.com/science',
 'www.cnn.com/technology',
 'www.nytimes.com/business',
 'www.nytimes.com/science',
 'www.nytimes.com/technology']

Answer 2

或者使用嵌套循环：

tag_names = ['business', 'science', 'technology']
domain_names = ['bbc', 'cnn', 'nytimes']

print([f'www.{domain}.com/{tag}' for domain in domain_names for tag in tag_names])

输出：

['www.bbc.com/business',
 'www.bbc.com/science',
 'www.bbc.com/technology',
 'www.cnn.com/business',
 'www.cnn.com/science',
 'www.cnn.com/technology',
 'www.nytimes.com/business',
 'www.nytimes.com/science',
 'www.nytimes.com/technology']

Answer 3

res=zip(tag_names,domain_names)
for i in res:
    print(f'www.{i[1]}.com/{i[0]}')

在 Python 中生成包含两个 f 字符串替换的 url 列表

Generate a list of urls with two f-string substitutions in Python

python

f-string