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# 练习函数式编程的匿名函数

from functools import reduce

# 用reduce来求一个列表的和

l = [x for x in range(11)]

# lambda的就是匿名函数，冒号前的表示参数，冒号后的表达式的结果为返回值

sum = reduce(lambda x, y: x + y, l)

print(sum)

# 还可以将匿名函数赋值给变量

f = lambda x: x * x

print(f(5))

print(f(8))

# 作业：改造代码

L = list(filter(lambda x: x % 2 == 1,range(1,20)))

print(L)