一：all和any
all和any
如果是空可迭代对象(字符串，列表，字典，元祖)，返回True
里面传入的是可迭代对象,(字符串，列表，字典，元祖)可迭代对象里面不能是空，如果是空，返回False
1 all和any
# print(all(['sb',0]))
# print(all([]))
# print(all(()))
# print(all({}))
# print(all(''))
# print(any(['',1],))
#
# 里面传入的是可迭代对象,(字符串，列表，字典，元祖)可迭代对象里面不能是空，如果是空，返回False
# 如果是空可迭代对象(字符串，列表，字典，元祖)，返回True
2
# 输入字符串返回编码位置
# print(ord('我'))
3
# 输入一个编码位置，返回字符串
# print(chr(25105))
4
# repr 返回里面是什么就是什么，必须跟着可迭代对象 原形毕露
# %r
# print(repr('[alex]'))
# name='alex%r'%('_sb')
# print(name)
5
# slice 有返回值，可设置起始值 切片
# l=[1,2,3,4]
# print(slice(1,l[1::]))
# slice
# l1 = [11,22,33,44]
# print(l1[1::2])
# sl = slice(1,4,2)
# print(l1[sl])
6
# reversed('我是可迭代对象,返回迭代器') l2=reversed(l1)
# l1 = [11,33,22,44,'alex']
# # l1.reverse()
# # print(l1)
# l2=reversed(l1)
# print(l2)
# for i in reversed(l1):
# print(i)
7
# dic = {'k1':20,'k2':30,'k3':100}
# def func(x):
# return dic[x]
# l1 = max(dic,key=func,)
# print(l1)
# dic = {3:20,2:30,1:100}
# def func(x):
# return x
# l1 = max(dic,key=func,)
# print(l1)
#
8
# zip拉链 将可迭代对象最少的为基准，可放多个对象，一一对应，返回一个元祖
# from collections import Iterator
# l1 = [1,2,3,4,5]
# l2 = ['wusir','alex','taibai']
# l3 = ['*',"**"]
# print(zip(l1,l2))
# print(isinstance(zip(l1,l2),Iterator))
# for i in zip(l1,l2,l3):
# print(i)
9
#map
#[i*i for i in range(5)]
# print([i*i for i in range(5)])
# print(map(abs,[1,2,3,-4,-5,-7]))
# for i in map(abs,[1,2,3,-4,-5,-7]):
# print(i)
# def func(x):return x*x
# for i in map(func,range(5)):
# print(i)
# def func(x):return x*x
# for i in map(func,[0,1,2,3,4]):
# print(i)
10
#filter 过滤
# [i for i in [1,2,3,4,5] if i % 2 == 0]
# def func1(x):return x % 2 == 0
# for i in filter(func1,[1,2,3,4,5]):
# print(i)
11
#sorted 返回的是列表
#形成一个新列表,并返回
#与list.sort() 改变原列表
# l1 = [1,4,3,5,7,8]
# print(sorted(l1,))
# print(l1)
# l = ['fsdafsa','fddsaf','qqq','fgasjdlg;dsjfg']
# # def func1(x):
# # return len(x)
# # for i in sorted(l,key=func1):
# # print(i)
# print(sorted(l,key=len))