擅长:python、mysql、java
<p>您需要在函数中声明它为全局:</p>
<pre><code>def cmplist(list): #Actually this function calls from another function
global globlist
if len(list) > len(globlist):
globlist = list[:] #copy all element of list to globlist
# main
globlist = [1, 2, 3]
lst = [1, 2, 3, 4]
cmplist(lst)
print globlist
</code></pre>