1 # -*- coding: UTF-8 -*-

 2 def bar():

 3     print('from bar')

 4 def foo():

 5     print('from foo')

 6     bar()

 7 foo()

 8

 9 name = 'lhf'

10 def change_name():

11     global name

12     name = 'such a good young boy'

13     print('change_name',name)

14 def change_name1():

15     name1 = '帅了一比'

16     name2 = '帅了一比'

17     name3 = '帅了一比'

18     print('change_name',name)

19 change_name()

20 change_name1()

21 print(name)

22

23 NAME = '杠娘'

24 def yangjian():

25     global NAME

26     NAME = 'a cute little northwestern man'

27     print('i am going to hang out with ' + NAME)

28 def qupengfei():

29     NAME = 'alex'

30     print('i am going to hang out with ' + NAME)

31 yangjian()

32 qupengfei()

33

34 NAME = ['a','b']

35 def qupengfei():

36     NAME = 'myself'

37     print('i am fucking ' + NAME)

38 qupengfei()

39

40 NAME = ['c','d']

41 def yuyukun():

42     NAME.append('e')

43     print('i am fucking',NAME)

44 yuyukun()

45

46 result:

47 from foo

48 from bar

49 ('change_name', 'such a good young boy')

50 ('change_name', 'such a good young boy')

51 such a good young boy

52 i am going to hang out with a cute little northwestern man

53 i am going to hang out with alex

54 i am fucking myself

55 ('i am fucking', ['c', 'd', 'e'])

#global keywork

name = '刚娘'

def weihou():

    name = '陈卓'

    def weiweihou():

        global name #此处全局变量对应line780,表示重申变量name为全局变量

        name = '冷静' #此处name仅为weiweihou()中的全局变量

    weiweihou()

    print(name) #此时打印的name对应'陈卓'，因为weihou()中声明了name='陈卓'的局部变量

print(name)

weihou()

print(name)

#nonlocal keywork

name = '刚娘'

def weihou():

    name = '陈卓'

    def weiweihou():

        nonlocal name #修改上级变量，陈卓改为冷静

        name = '冷静'

    weiweihou()

    print(name)

print(name)

weihou()

print(name)

result:

刚娘

陈卓

冷静

刚娘

冷静

刚娘

def add(n):

    print(n)

    if n == 1:

        return n

    else:

        return (n + add(n-1))

res = add(10)

print(res)

result:

10

9

8

7

6

5

4

3

2

1

55

    print(n)

    if int(n / 2) == 0:

        return n

    res = calc(int(n/2))

    return res

res = calc(10)

print(res)

person_list = ['alex','wupeiqi','linhaifeng','zsc']

def ask_way(person_list):

    print('-'*60)

    if(len(person_list)) == 0:

        return '根本没人知道'

    person = person_list.pop(0)

    if person == 'linhaifeng':

        return '%s说:我知道，老男孩就在沙河汇德商厦，下地铁就是'%person

    print('hi 美男[%s],敢问路在何方' %person)

    print('%s回答道：我不知道，但念你慧眼识珠，你等着，我帮你问问%s...'%(person,person_list))

    # time.sleep(10)

    res = ask_way(person_list)

    print('%s问的结果是：%res'%(person,res))

    return res

res = ask_way(person_list)

print(res)