首先從功能模塊中導入函數

from functools import reduce

要實現的功能

num_1 = [1,2,3,4,5,6,100] # res = 0 # for num in num_1: # res +=num # print (res) # # def reduce_test(array): # res = 0 # for num in array: # res+=num # return res # print(reduce_test(num_1))

實現代碼

# from functools import reduce num_1 = [1,2,3,4,5,6,100]def reduce_test(func,array):res = array.pop(0)for num in array:res=func(res,num)return res # print(reduce_test(num_1)) print(reduce_test(lambda x,y:x*y,num_1)) # from functools import reduce num_1 = [1,2,3,4,5,6,100]def reduce_test(func,array,init=None):if init is None:res = array.pop(0)else:res = initfor num in array:res=func(res,num)return res # print(reduce_test(num_1)) print(reduce_test(lambda x,y:x*y,num_1,0))

reduce將所有元素運算行成一個數，公式，列表，默認值

轉載于:https://www.cnblogs.com/wangleiyifan/p/9286606.html

總結

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