0004python中的map,reduce,lambda,filter时间:2023-03-09 19:49:36 编程实现:a[0]*b[0] + a[1]*b[1] +...+a[i]*b[j] >>> a=[1,2,3,4,5]>>> b=[6,7,8,9,0] >>> from functools import reduce>>> from operator import add,mul>>> reduce(add,map(mul,a,b))80 >>> filter(lambda x:x>2,a)[3, 4, 5]