擅长:python、mysql、java
<p>几个问题:</p>
<pre><code>def sitesize(url):
result = {}
for url in sites:
with urllib.request.urlopen(url) as u:
page = u.read()
result[url] = len(page)
return result
</code></pre>
<ul>
<li>sitesize不返回任何内容>;请参见上文,了解您需要的内容</li>
<li>不需要循环<code>for result in pool.imap_unordered(sitesize, sites):</code>
&燃气轮机;更改为<code>result = pool.map(sitesize, sites)</code></li>
</ul>