擅长:python、mysql、java
<p>使用<a href="http://docs.python.org/library/collections.html#collections.namedtuple" rel="noreferrer">namedtuple</a>:</p>
<pre><code>from collections import namedtuple
Item = namedtuple('abitem', ['a', 'b'])
class Items:
GREEN = Item('a', 'b')
BLUE = Item('c', 'd')
</code></pre>