def sum_of_evens(*n):
if isinstance(n,list) or isinstance(n,tuple) or isinstance(n,set):
for i in n:
if i % 2 == 0:
sum = 0
sum += i
return sum
else:
return False
我这么写错在哪呢
def sum_of_evens(*n):
if not n:
return False
lis = []
for each in n:
if isinstance(each, list) or isinstance(each, tuple) or isinstance(each, set):
lis.extend([*each])
else:
lis.append(each)
return sum(filter(lambda x: x % 2 == 0, lis))
测试结果如下: