擅长:python、mysql、java
<p>使用更多变量。不仅行更容易阅读,完整的代码也更容易理解:</p>
<pre><code>base = "https://secure.gravatar.com/avatar.php"
params = urllib.urlencode({'gravatar_id': hashlib.md5(email).hexdigest(),
'size': srt(size)})
url = "{}?{}".format(base, params)
result = urllib.urlretrieve(url)
</code></pre>