语法练习：sum_double

语法练习：sum_double

题目：sum_double

Given two int values, return their sum. Unless the two values are the same, then return double their sum.

sum_double(1, 2) → 3
sum_double(3, 2) → 5
sum_double(2, 2) → 8

我的解答：

def sum_double(a, b):
  if a == b:
    return 4*a
  else:
    
1
2
3
4