n = 1234
def digit_sum(n):
a = 0
s = [ int(i)for i in str(n)]
print s
for i in s:
a += i
return a
print digit_sum(n)
>>
[1,2,3,4]
10
n = 1234
def digit_sum(n):
a = 0
s = [ int(i)for i in str(n)]
print s
for i in s:
a += i
return a
print digit_sum(n)
>>
[1,2,3,4]
10
转载于:https://my.oschina.net/u/2411039/blog/477208