-
用 Ruby Koans 学习 Ruby,其中一道题，到 stackoverflow 上一看，高下立判啊！ at October 15, 2014
def triangle(a, b, c): arr = [a,b,c] a, b, c = arr.sort() if a < 0 or a+b < c: raise Exception return ['equilateral','isosceles','scalene'][set(arr).size-1]
def triangle(a, b, c): arr = [a,b,c] a, b, c = arr.sort() if a < 0 or a+b < c: raise Exception return ['equilateral','isosceles','scalene'][set(arr).size-1]