擅长:python、mysql、java
<p><strong>使用词典</p>
<pre><code># convert list into dictionary
d = dict(tuple(passwords))
try:
d[passwordToLookup]
except KeyError:
# what to do if no password available
else:
# what to do if available
</code></pre>
<p>或者使用字典的默认get方法</p>
<pre><code>return d.get(passwordToLookup, default=None)
</code></pre>
<p><strong>不带词典</p>
<pre><code>values = list(zip(*passwords))
try:
the_password = values[1][values[0].index(passwordToLookup)]
except ValueError:
# what to do if no password available
else:
# what to do if available
</code></pre>