擅长:python、mysql、java
<p>您可以使用<code>tuple</code>保存每行数据,并使用<a href="https://docs.python.org/2/library/collections.html#collections.OrderedDict" rel="nofollow">OrderedDict</a>构建<code>rowDB</code>,它将行元组映射到行号,然后<code>is_uniq</code>是一个简单而快速的检查,如下所示:</p>
<pre><code>return new_row not in rowDB
</code></pre>
<p><code>is_uniq</code>将是:</p>
<pre><code>def is_uniq(rowDB, new_row):
if new_row in rowDB:
return False, rowDB[new_row]
else:
return True, 0
</code></pre>