题解 | #求1+2+3+...+n#
求1+2+3+...+n
http://www.nowcoder.com/practice/7a0da8fc483247ff8800059e12d7caf1
-- coding:utf-8 --
class Solution:
def Sum_Solution(self, n):
if n==1:
return 1
return n+self.Sum_Solution(n-1)
# write code here