for x in args : 从哪蹦出来个 ‘x’ ？
def average(*args):
sum = 0.0
if len(args) == 0 :
return sum
for x in args :
sum = sum + x
return sum / len(args)
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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)
2019-09-07
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