1.定义两个函数，求和函数和最大函数
def add(x, y): return x + y def maxnum(x, y): return x if x > y else y
lst= [2, 4, 6, 9,8,98,34,90]
def reduce_(function, liste , initial): result = initial for num in liste: result = function(result, num) return result print(reduce_(maxnum, lst, 0)) print(reduce_(add, lst, 0))
原文：http://www.cnblogs.com/hjhsysu/p/5750731.html