###reduce_test 函数######################
# num_1 = [1,2,3,100]
# def reduce_test(func,array,init=None):
#     if init is None:
#         res = array.pop(0)
#     else:
#         res = init
#     for num in array:
#         res = func(res,num)
#     return res
# ss = reduce_test(lambda x,y:x*y,num_1,2)
# print(ss)

###reduce  函数：
from functools import reduce

num_1 = [1,2,3,100]
res = reduce(lambda x,y:x+y,num_1,100)
print(res)