擅长:python、mysql、java
<p><a href="http://docs.python.org/2/library/functions.html#intern" rel="nofollow">^{<cd1>}</a>获取所需行为的字符串:</p>
<pre><code>>>> b = intern('testing123')
>>> getrefcount(b)
2
>>> a = 'test'
>>> a = intern(a+'ing123')
>>> getrefcount(b)
3
>>> a is b
True
</code></pre>