擅长:python、mysql、java
<p>您正在搜索双qoutes<code>"</code>,而您的示例是使用单qoutes<code>'</code>。你知道吗</p>
<pre><code>re.search(r'post date="([\d\W]+)"'
^ ^
</code></pre>
<p>是的。你知道吗</p>
<pre><code>post date='2008-7' postCount='8' viewCount='24308' questionCount='5' answerCount='76' answeredQuestion='5'
^ ^
</code></pre>
<p><strong>编辑:</strong>问题不再在regex中,而是在python中。举个例子:</p>
<pre><code>import re
postline = "post date='2008-7' postCount='8' viewCount='24308' questionCount='5' answerCount='76' answeredQuestion='5'"
pattern = "post date='([\d\W]+)'"
p1 = re.compile(pattern)
date = p1.search(postline).group(1)
print date
</code></pre>
<p>输出:</p>
<pre><code>2008-7
</code></pre>