<p>在提取日期字符串、用strptime识别它们并用strftime重新格式化它们时,如何组合这些循环?在</p>
<pre><code>datesandcontent = [elm.get_text() for elm in soup.find_all('div', {'class' : "review-content"})]
dates = [re.search(r'(\d+/\d+/\d+)', elm).group(1) for elm in datesandcontent]
dates2 = [datetime.strptime(date, '%m/%d/%Y') for date in dates]
dates3 = [datetime.strftime(date2, '%Y-%m-%d') for date2 in dates2]
</code></pre>