匿名函数lambda

匿名函数的关键字为 lambda
冒号前面是 形参 冒号后面是返回值

from functools import reduce
def add(x,y):
    return x+y
print(reduce(add,range(10)))

print(reduce(lambda x,y:x+y,range(10)))

def mypow(x):
    return x ** 2
print(list(map(lambda x:x**2,range(5))))

def isood(num):
    return num % 2 == 0
print(list(filter(lambda x:x%2==0,range(10))))

#执行结果
45
45
[0, 1, 4, 9, 16]
[0, 2, 4, 6, 8]

来源：CSDN

作者：房渊

链接：https://blog.csdn.net/fangyuan1997/article/details/103483350