python常用函数

max()

height = {'swz':180, 'dj':170, 'zs':160, 'fll':150}

 

max(height, key=lambda x:height[x])

 

map():映射

namel=['dj','fll','zs']

 

map(func,namel)

map(lambda x:x+'sb',namel)

 

py2正常返回

py3返回迭代器

 

reduce():合并(相加)可以处理字符串

py3需要导入

from functools import reduce

 

reduce(lambda x, y:x+y, [i for i in range(101)],200)

最后参数为初始值

 

 

filter():过滤

namel=['djsb','fllsb','zssb','swz']

 

filter(lambda x:x.endswith('sb'),namel)