我用的python2.7 请问这个问题怎么解决
Traceback (most recent call last): File "D:/����/practice.py", line 133, in <module> print my_sum(1,2,3,4,5) TypeError: 'NoneType' object is not callable
Traceback (most recent call last): File "D:/����/practice.py", line 133, in <module> print my_sum(1,2,3,4,5) TypeError: 'NoneType' object is not callable
2016-03-03
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