擅长:python、mysql、java
<p>如果要修改全局变量,应该在函数的顶部使用<code>global</code>语句</p>
<pre><code>def exposed_setCallback(self, fn):
global myReferences
# i = 0
self.fn = fn # Saves the remote function for calling later
print self.fn
myReferences.add(self.fn)
</code></pre>