擅长:python、mysql、java
<p>你想做一个<a href="http://code-maven.com/function-or-callback-in-python" rel="nofollow noreferrer">callback</a></p>
<p>而<a href="https://stackoverflow.com/questions/4689984/implementing-a-callback-in-python-passing-a-callable-reference-to-the-current">here</a>是回调在设计模式中的用法</p>