當前 discord.py （async.io） 代碼，用于打印隨機紐約時報文章的鏈接。@client.command()async def news(ctx): url = 'https://www.nytimes.com/section/us' r = requests.get(url) soup = BeautifulSoup(r.content) articles = soup.find_all('a') newslist = [] for article in articles: newslist.append(article['href']) news = random.choice(newslist) while "2020" not in news: news = random.choice(newslist) else: await ctx.send('https://www.nytimes.com' + news)由于頁面中的每個鏈接都被附加到新聞列表中，因此在打印/等待ctx.send之前，正在檢查“2020”，這意味著它是一篇文章。有沒有辦法做一個find_all（'a'）只找到包含“2020”的鏈接，或者只附加包含“2020”的鏈接？這些方法會更有效嗎？
1 回答
慕容3067478
TA貢獻1773條經驗 獲得超3個贊
import requests
from bs4 import BeautifulSoup
import re
r = requests.get("https://www.nytimes.com/section/us")
soup = BeautifulSoup(r.content, 'html.parser')
urls = []
for item in soup.findAll("a", href=re.compile("2020")):
item = item.get("href")
if not item.startswith("http"):
item = f"https://www.nytimes.com{item}"
else:
pass
if item not in urls:
urls.append(item)
print(item)
輸出：
https://www.nytimes.com/2020/03/18/us/coronavirus-immigrants.html
https://www.nytimes.com/2020/03/18/us/coronavirus-nebraska-biocontainment.html
https://www.nytimes.com/2020/03/18/us/coronavirus-janitors-cleaners.html
https://www.nytimes.com/2020/03/18/us/small-business-coronavirus-charlotte.html
https://www.nytimes.com/2020/03/19/us/politics/coronavirus-heaven-frilot-mark-frilot.html
https://www.nytimes.com/2020/03/19/us/politics/coronavirus-state-department-travel.html
https://www.nytimes.com/2020/03/19/us/politics/coronavirus-congress-voting.html
https://www.nytimes.com/2020/03/19/us/coronavirus-foster-pets.html
https://www.nytimes.com/2020/03/19/books/molly-brodak-dies.html
https://www.nytimes.com/2020/03/19/us/politics/joe-biden-vice-president.html
https://www.nytimes.com/2020/03/19/us/coronavirus-location-tracking.html
https://www.nytimes.com/2020/03/19/climate/us-flood-season-forescast.html
https://www.nytimes.com/2020/03/19/health/coronavirus-masks-shortage.html
https://www.nytimes.com/2020/03/19/health/coronavirus-travel-ban.html
https://www.nytimes.com/2020/03/19/arts/mal-sharpe-dead.html
https://www.nytimes.com/2020/03/19/business/coronavirus-unemployment-states.html
https://www.nytimes.com/2020/03/19/us/work-from-home-mothers-coronavirus-covid19.html
https://www.nytimes.com/2020/03/19/us/politics/1000-checks-coronavirus-stimulus.html
https://www.nytimes.com/news-event/2020-election
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