擅长:python、mysql、java
<p><a href="https://docs.python.org/2/library/urllib2.html">https://docs.python.org/2/library/urllib2.html</a></p>
<pre><code>urllib2.urlopen(url[, data][, timeout])
</code></pre>
<blockquote>
<p>The optional timeout parameter specifies a timeout in seconds for
blocking operations like the connection attempt (if not specified, the
global default timeout setting will be used).</p>
</blockquote>