为什么这样运行成功却输出错误？求高手指教
def average(*args):
sum=0.0
if len(args)==0:
return sum
for x in args:
sum=sum+x
return sum/len(args)
print average()
print average(1, 2)
print average(1, 2, 2, 3, 4)
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def average(*args):
sum=0.0
if len(args)==0:
return sum
for x in args:
sum=sum+x
return sum/len(args)
print average()
print average(1, 2)
print average(1, 2, 2, 3, 4)
2017-11-19
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