# -*- coding: utf-8 -*-
def mul(*num):
if len(num)==0:
return None
else:
s=1
for n in num:
s = s * n
return s
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柴哲远
# -*- coding: utf-8 -*-
def mul(*num):
if len(num)==0:
return None
else:
s=1
for n in num:
s = s * n
return s