d = {key1 : value1, key2 : value2 }

info = {
    "stu1": "AAA",
    "stu2": "BBB",
    "stu3": "CCC"
}

# 先建个空字典，然后加值进去
info_2021 = {}
info_2021["stu21_1"] = "DDD"

info_03 = dict(stu1="AAA", stu2="BBB", stu3="CCC")

dict = {'name': 'Dillon', 'age': 19}
 
print ("dict['name']: ", dict['name'])
print ("dict['age']: ", dict['age'])

dict['name']:  Dillon
dict['age']:  19

dict = {'name': 'Dillon', 'age': 18}
 
dict['age'] = 19           # 更新 Age
dict['school'] = "中大南方"  # 添加信息
print ("dict['age']: ", dict['age'])
print ("dict['school']: ", dict['school'])

dict['age']:  19
dict['school']:  中大南方

dict = {'name': 'Dillon', 'age': 19}
 
del dict['name'] # 删除键 'name'
dict.clear()     # 清空字典
del dict         # 删除字典

dict = {'name': 'Dillon', 'age': 19, 'name': 'D'}
 
print ("dict['name']: ", dict['name'])

dict['name']:  D

dict = {['name']: 'Dillon', 'age': 19}
 
print ("dict['name']: ", dict['name'])

Traceback (most recent call last):
  File "test.py", line 3, in <module>
    dict = {['name']: 'Dillon', 'age': 19}
TypeError: unhashable type: 'list'

parame = {value01, value02}

set(value)

s.add( x )

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> thisset.add("Facebook")
>>> print(thisset)
{'Taobao', 'Facebook', 'Google', 'Runoob'}

s.update(x)

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> thisset.update({1,3})
>>> print(thisset)
{1, 3, 'Google', 'Taobao', 'Runoob'}
>>> thisset.update([1,4],[5,6])  
>>> print(thisset)
{1, 3, 4, 5, 6, 'Google', 'Taobao', 'Runoob'}

s.remove( x )

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> thisset.remove("Taobao")
>>> print(thisset)
{'Google', 'Runoob'}
>>> thisset.remove("Facebook")   # 不存在会发生错误
Traceback (most recent call last):
  File "<stdin>", line 1, in <module>
KeyError: 'Facebook'

s.discard( x )

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> thisset.discard("Facebook")  # 不存在不会发生错误
>>> print(thisset)
{'Taobao', 'Google', 'Runoob'}

s.pop() 

len(s)

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> len(thisset)
3

s.clear()

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> thisset.clear()
>>> print(thisset)
set()

x in s

>>> thisset = set(("Google", "Runoob", "Taobao"))
>>> "Runoob" in thisset
True
>>> "Facebook" in thisset
False

>>> a = set('abracadabra')
>>> b = set('alacazam')
>>> a 
{'a', 'r', 'b', 'c', 'd'}
>>> a - b   # 集合a中包含而集合b中不包含的元素
{'r', 'd', 'b'}
>>> a | b   # 集合a或b中包含的所有元素
{'a', 'c', 'r', 'd', 'b', 'm', 'z', 'l'}
>>> a & b   # 集合a和b中都包含了的元素
{'a', 'c'}
>>> a ^ b   # 不同时包含于a和b的元素
{'r', 'd', 'b', 'm', 'z', 'l'}

import getpass
card = int(getpass.getpass("请输入数字："))
count = 0
while True:
    if count < 3:
        guess = int(input("请输入你猜测的数字："))
        # 对比数字和猜测数字的大小
        if card == guess:
            print("Good job!")
            break
        elif card > guess:
            print("Bigger.")
        else:
            print("Smaller.")
    else:
        print("哈哈哈哈～猜了这么多次都猜不出来，你好笨啊～")
        break
    count = count + 1

# GetPassWarning: Can not control echo on the terminal.
#   passwd = fallback_getpass(prompt, stream)
# Warning: Password input may be echoed.
# 请输入数字：55
#
# 请输入你猜测的数字：12
# Bigger.
# 请输入你猜测的数字：56
# Smaller.
# 请输入你猜测的数字：57
# Smaller.
# 哈哈哈哈～猜了这么多次都猜不出来，你好笨啊～

vowels = ['a', 'e', 'i', 'o', 'u']
word = input("Provide a word to search for vowels: ")

found = {}

found['a'] = 0
found['e'] = 0
found['i'] = 0
found['o'] = 0
found['u'] = 0

for letter in word:
    if letter in vowels:
        found[letter] += 1

for k, v in sorted(found.items()):
    print(k, 'was found', v, 'time(s)')

# Provide a word to search for vowels: Password input may be echoed.
# a was found 2 time(s)
# e was found 3 time(s)
# i was found 1 time(s)
# o was found 2 time(s)
# u was found 1 time(s)

vowels = ['a', 'e', 'i', 'o', 'u']
word = input("Provide a word to search for vowels: ")

found = {}

for letter in word:
    if letter in vowels:
        found[letter] += 1

for k, v in sorted(found.items()):
    print(k, 'was found', v, 'time(s)')

# Provide a word to search for vowels: Password input may be echoed.
# Traceback (most recent call last):
#   File "/Users/apple/PycharmProjects/w6/vowels5.py", line 8, in <module>
#     found[letter] += 1
# KeyError: 'a'

vowels = ['a', 'e', 'i', 'o', 'u']
word = input("Provide a word to search for vowels: ")

found = {}

for letter in word:
    if letter in vowels:
        found.setdefault(letter, 0)
        # setdefault() 函数和 get()方法 类似, 如果键不存在于字典中，将会添加键并将值设为默认值。
        found[letter] += 1

for k, v in sorted(found.items()):
    print(k, 'was found', v, 'time(s)')

# Provide a word to search for vowels: Password input may be echoed.
# a was found 2 time(s)
# e was found 3 time(s)
# i was found 1 time(s)
# o was found 2 time(s)
# u was found 1 time(s)

vowels = set('aeiou')
word = input("Provide a word to search for vowels: ")
found = vowels.intersection(set(word))
for vowel in found:
    print(vowel)

# Provide a word to search for vowels: Password input may be echoed.
# e
# a
# o
# u
# i

r = [{'faceId': '1e4ab4e8-b146-4d1c-b199-0244808902c6',
  'faceRectangle': {'top': 118, 'left': 144, 'width': 88, 'height': 88},
  'faceAttributes': {'smile': 0.813,
   'gender': 'male',
   'age': 19.0,
   'glasses': 'NoGlasses',
   'hair': {'bald': 0.18,
    'invisible': False,
    'hairColor': [{'color': 'brown', 'confidence': 0.95},
     {'color': 'black', 'confidence': 0.93},
     {'color': 'other', 'confidence': 0.23},
     {'color': 'blond', 'confidence': 0.23},
     {'color': 'gray', 'confidence': 0.21},
     {'color': 'red', 'confidence': 0.15},
     {'color': 'white', 'confidence': 0.0}]}}},
 {'faceId': '3649cc3a-6fea-415c-96af-216985d159d0',
  'faceRectangle': {'top': 117, 'left': 376, 'width': 64, 'height': 64},
  'faceAttributes': {'smile': 0.456,
   'gender': 'female',
   'age': 22.0,
   'glasses': 'NoGlasses',
   'hair': {'bald': 0.08,
    'invisible': False,
    'hairColor': [{'color': 'black', 'confidence': 1.0},
     {'color': 'other', 'confidence': 0.63},
     {'color': 'brown', 'confidence': 0.46},
     {'color': 'gray', 'confidence': 0.39},
     {'color': 'blond', 'confidence': 0.03},
     {'color': 'red', 'confidence': 0.01},
     {'color': 'white', 'confidence': 0.0}]}}},
 {'faceId': 'cbb83b49-7744-4233-bf3d-3d650fe2522c',
  'faceRectangle': {'top': 41, 'left': 676, 'width': 52, 'height': 52},
  'faceAttributes': {'smile': 1.0,
   'gender': 'male',
   'age': 25.0,
   'glasses': 'ReadingGlasses',
   'hair': {'bald': 0.06,
    'invisible': False,
    'hairColor': [{'color': 'black', 'confidence': 0.98},
     {'color': 'brown', 'confidence': 0.96},
     {'color': 'other', 'confidence': 0.22},
     {'color': 'gray', 'confidence': 0.21},
     {'color': 'red', 'confidence': 0.09},
     {'color': 'blond', 'confidence': 0.08},
     {'color': 'white', 'confidence': 0.0}]}}},
 {'faceId': 'a53220d9-d1ad-49c4-aff2-60b29d7b5395',
  'faceRectangle': {'top': 69, 'left': 445, 'width': 52, 'height': 52},
  'faceAttributes': {'smile': 1.0,
   'gender': 'female',
   'age': 23.0,
   'glasses': 'NoGlasses',
   'hair': {'bald': 0.11,
    'invisible': False,
    'hairColor': [{'color': 'black', 'confidence': 1.0},
     {'color': 'brown', 'confidence': 0.81},
     {'color': 'other', 'confidence': 0.41},
     {'color': 'gray', 'confidence': 0.37},
     {'color': 'blond', 'confidence': 0.03},
     {'color': 'red', 'confidence': 0.02},
     {'color': 'white', 'confidence': 0.0}]}}},
 {'faceId': 'c9dab554-30b5-46ab-985a-51312dfbd1b9',
  'faceRectangle': {'top': 95, 'left': 238, 'width': 51, 'height': 51},
  'faceAttributes': {'smile': 0.981,
   'gender': 'female',
   'age': 18.0,
   'glasses': 'ReadingGlasses',
   'hair': {'bald': 0.11,
    'invisible': False,
    'hairColor': [{'color': 'black', 'confidence': 0.98},
     {'color': 'brown', 'confidence': 0.86},
     {'color': 'other', 'confidence': 0.4},
     {'color': 'gray', 'confidence': 0.36},
     {'color': 'blond', 'confidence': 0.09},
     {'color': 'red', 'confidence': 0.08},
     {'color': 'white', 'confidence': 0.0}]}}},
 {'faceId': 'c2f4dfce-a532-47f6-b197-2aa794df5bc5',
  'faceRectangle': {'top': 94, 'left': 540, 'width': 48, 'height': 48},
  'faceAttributes': {'smile': 1.0,
   'gender': 'female',
   'age': 19.0,
   'glasses': 'NoGlasses',
   'hair': {'bald': 0.1,
    'invisible': False,
    'hairColor': [{'color': 'black', 'confidence': 1.0},
     {'color': 'brown', 'confidence': 0.88},
     {'color': 'other', 'confidence': 0.35},
     {'color': 'gray', 'confidence': 0.33},
     {'color': 'blond', 'confidence': 0.05},
     {'color': 'red', 'confidence': 0.04},
     {'color': 'white', 'confidence': 0.0}]}}}]

# 创建字典
glasses = {}
smile = {}
hairColor = {}
age = {}
gender = {}

# 把所有人脸的值添加进字典
count = 0
while count < len(r):
    glasses["Person{}".format(count + 1)] = r[count]['faceAttributes']['glasses']
    smile["Person{}".format(count + 1)] = r[count]['faceAttributes']['smile']
    hairColor["Person{}".format(count + 1)] = r[count]['faceAttributes']['hair']['hairColor'][0]['color']
    age["Person{}".format(count + 1)] = r[count]['faceAttributes']['age']
    gender["Person{}".format(count + 1)] = r[count]['faceAttributes']['gender']
    count += 1

# 打印字典
print("眼镜：", glasses)
print("微笑指数：", smile)
print("头发颜色：", hairColor)
print("年龄：", age)
print("性别：", gender)

# 眼镜： {'Person1': 'NoGlasses', 'Person2': 'NoGlasses', 'Person3': 'ReadingGlasses', 'Person4': 'NoGlasses', 'Person5': 'ReadingGlasses', 'Person6': 'NoGlasses'}
# 微笑指数： {'Person1': 0.813, 'Person2': 0.456, 'Person3': 1.0, 'Person4': 1.0, 'Person5': 0.981, 'Person6': 1.0}
# 头发颜色： {'Person1': 'brown', 'Person2': 'black', 'Person3': 'black', 'Person4': 'black', 'Person5': 'black', 'Person6': 'black'}
# 年龄： {'Person1': 19.0, 'Person2': 22.0, 'Person3': 25.0, 'Person4': 23.0, 'Person5': 18.0, 'Person6': 19.0}
# 性别： {'Person1': 'male', 'Person2': 'female', 'Person3': 'male', 'Person4': 'female', 'Person5': 'female', 'Person6': 'female'}

1、>>>import datetime
>>>datetime date.today()
datetime.date(2020, 11, 1)
>>> datetime.date.today().day
1
>>> datetime.date.today().month
11
>>> datetime.date.today().year
2020

1.1、>>> datetime.date.now()
Traceback (most recent call last):
  File "<pyshell#83>", line 1, in <module>
    datetime.date.now()
AttributeError: type object 'datetime.date' has no attribute 'now'

>>> datetime.date.now().year
Traceback (most recent call last):
  File "<pyshell#84>", line 1, in <module>
    datetime.date.now().year
AttributeError: type object 'datetime.date' has no attribute 'now'

>>> datetime.date.now().month
Traceback (most recent call last):
  File "<pyshell#85>", line 1, in <module>
    datetime.date.now().month
AttributeError: type object 'datetime.date' has no attribute 'now'

>>> datetime.date.now().day
Traceback (most recent call last):
  File "<pyshell#86>", line 1, in <module>
    datetime.date.now().day
AttributeError: type object 'datetime.date' has no attribute 'now'

2、>> datetime.datetime.today()
datetime.datetime(2020, 11, 1, 11, 8, 20, 567838)
>>> datetime.datetime.today().year
2020
>>> datetime.datetime.today().month
11
>>> datetime.datetime.today().day
1

2.1、>>> datetime.datetime.now()
datetime.datetime(2020, 11, 1, 10, 49, 15, 333100)
>>> datetime.datetime.now().year
2020
>>> datetime.datetime.now().month
11
>>> datetime.datetime.now().day
1

print("猜猜游戏")
shuru=input("请输入一个数字")
shuru=int(shuru)
if shuru==8:
    print("我是帅哥")
elif shuru==10:
    print("我是美女")
else:
    print("我是码农")
    print("游戏结束")

>>>猜猜游戏
   请输入一个数字8
   我是帅哥

猜猜游戏
请输入一个数字8
我是码农
游戏结束
>>> 
==================== RESTART: C:/Users/方泽斌/Desktop/11.1.1.py ===================
>>> 
猜猜游戏
请输入一个数字10
我是码农
游戏结束
>>> 
==================== RESTART: C:/Users/方泽斌/Desktop/11.1.1.py ===================
>>> 
猜猜游戏
请输入一个数字2
我是码农
游戏结束
>>> 

>>> for i in [1,2,3]:
	print(i)
1
2
3

>>> for i in "fangzebin":
	print(i)	
f
a
n
g
z
e
b
i
n

>>> for i in range(10):
	print("fangzebin")
fangzebin
fangzebin
fangzebin
fangzebin
fangzebin
fangzebin
fangzebin
fangzebin
fangzebin
fangzebin

>>> for i in range(10):
	print(i)
0
1
2
3
4
5
6
7
8
9

>>> for i in range(10):
	print(10)
10
10
10
10
10
10
10
10
10
10

>>> begin=0
>>> for i in range(1001):
	begin=begin+i
	print(begin)

>>> import random
>>> random.randint(1,60)
1

>>> "fangzebin".upper()
'FANGZEBIN'

>>> "FANGZEBIN".lower()
'fangzebin'

>>> a=[1,2,3,4,5,6,7,8,9]
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9]

>>> b=[1,2,3,4,5,'fang','ze','bin']
>>> b
[1, 2, 3, 4, 5, 'fang', 'ze', 'bin']

>>> a.append(10)
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10]

>>> b.append("fangzebin")
>>> b
[1, 2, 3, 4, 5, 'fang', 'ze', 'bin', 'fangzebin']

>>> a.extend("fangzebin")
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 'f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n']

>>> b.extend("fangzebin")
>>> b
[1, 2, 3, 4, 5, 'fang', 'ze', 'bin', 'fangzebin', 'f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n']

>>> a.extend([10])
>>> a
[1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 'f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n', 10]

>>> b.extend([10])
>>> b
[1, 2, 3, 4, 5, 'fang', 'ze', 'bin', 'fangzebin', 'f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n', 'f', 10]

a.insert(0,1)
>>> a
[1, 'fangzebin', 111, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 'f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n', 10]

>>> a.insert(0,"fangzebin")
>>> a
['fangzebin', 1, 'fangzebin', 111, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 'f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n', 10]

>>> a=[1,2,3,4,5]
>>> a
[1, 2, 3, 4, 5]
>>> a.pop()
5
>>> a
[1, 2, 3, 4]

>>> a
[1, 2, 3, 4]
>>> a.pop(3)
4
>>> a
[1, 2, 3]

>>> a=[1,2,3,4]
>>> b=[5,6,7,8]
>>> c=a+b
>>> c
[1, 2, 3, 4, 5, 6, 7, 8]

>>> a+=b
>>> a
[1, 2, 3, 4, 5, 6, 7, 8]

>>> a=list()
>>> a
[]
>>> a=list(range(10))
>>> a
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> a=list("fangzebin")
>>> a
['f', 'a', 'n', 'g', 'z', 'e', 'b', 'i', 'n']
>>> b=list([10])
>>> b
[10]
>>> b=list([1,2,3,4,5,6])
>>> b
[1, 2, 3, 4, 5, 6]

>>> list(range(2,15,2))
[2, 4, 6, 8, 10, 12, 14]
>>> list(range(15,3,-1))
[15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4]
>>> list(range(-3,-10,-3))
[-3, -6, -9]

>>> list(range(2,15,2))
[2, 4, 6, 8, 10, 12, 14]
>>> list(range(15,3,-1))
[15, 14, 13, 12, 11, 10, 9, 8, 7, 6, 5, 4]
>>> list(range(-3,-10,-3))
[-3, -6, -9]
>>> a=range(0,10)
>>> b=list(a)
>>> a
range(0, 10)
>>> b
[0, 1, 2, 3, 4, 5, 6, 7, 8, 9]
>>> c=b[0]
>>> c
0
>>> d=b[9]
>>> d
9

>>> a
(1, 2, 3, 4, 5, 6, 7, 8, 9)
>>> a.index(2)
1
>>> a.index(5)
4
>>> a.index(10)
Traceback (most recent call last):
  File "<pyshell#21>", line 1, in <module>
    a.index(10)
ValueError: tuple.index(x): x not in tuple

>>> a
(1, 2, 1, 2, 3, 4, 1, 2, 3, 1)
>>> a.count(2)
3
>>> a.count(1)
4

import random
a=random.randint(1,100)
count=0
if a<100 and a>0:
    while True:
        if count<5:
            shuru=input("请输入你猜想的数字")
            shuru=int(shuru)
            if shuru==a:
                print("恭喜你，猜中了")
                break
            elif shuru>a:
                print("你猜的数字太大了")
            else:
                print("你猜的数字太小了")
            count+=1
        else:
                print("不对")
                print("正确答案:%s"%(hide_card))
                break
    else:
                print("请输入数字在0-99的数字")

请输入你猜想的数字25
你猜的数字太小了
请输入你猜想的数字25
你猜的数字太小了
请输入你猜想的数字99
你猜的数字太大了
请输入你猜想的数字52
你猜的数字太小了
请输入你猜想的数字2
你猜的数字太小了
不对

>>> info={
	"name":"fangzebin",
	"nianji":19,
	"zhuanye":"wangxin"
	}
>>> print(info)
{'name': 'fangzebin', 'nianji': 19, 'zhuanye': 'wangxin'}

>>> print("dict['Name']:",dict['Name'])
dict['Name']: Fangzebin
>>> print(dict['Name'])
Fangzebin
>>> print("dict['Age']:",dict['Age'])
dict['Age']: 7

>>> dict={'Name':'Fangzebin','Age':7,'class':'wangxin'}
>>> dict['Age']=8
>>> dict['school']="zhongda"
>>> print("dict['Age']:",dict['Age'])
dict['Age']: 8
>>> print("dict['school']:",dict['school'])
dict['school']: zhongda
>>> print(dict)
{'Name': 'Fangzebin', 'Age': 8, 'class': 'wangxin', 'school': 'zhongda'}

>>> del dict['Name']
>>> dict
{'Age': 8, 'class': 'wangxin', 'school': 'zhongda'}
>>> dict.clear()
>>> dict
{}
>>> dict
{}
>>> del dict
>>> dict
<class 'dict'>
>>> print(dict)
<class 'dict'>
>>> print(dict['Age'])
Traceback (most recent call last):
  File "<pyshell#59>", line 1, in <module>
    print(dict['Age'])
TypeError: 'type' object is not subscriptable

>>> dict={'Name':'Fangzebin','Age':7}
>>> len(dict)
2
>>> dict={'Name':'Fangzebin','Age':7,'zhuanye':'wangxin'}
>>> len(dict)
3

>>> dict={'Name':'Fangzebin','Age':7}
>>> str(dict)[0]
'{'

1、
>>> found={}
>>> found["a"]=0
>>> found["e"]=0
>>> found["i"]=0
>>> found["o"]=0
>>> found["u"]=0
>>> print(found)
{'a': 0, 'e': 0, 'i': 0, 'o': 0, 'u': 0}
>>> found["e"]=found["e"]+1
>>> print(found)
{'a': 0, 'e': 1, 'i': 0, 'o': 0, 'u': 0}

2、
>>> found["e"]+=1
>>> print(found)
{'a': 0, 'e': 2, 'i': 0, 'o': 0, 'u': 0}

>>> for a in found:
	print(a,"is found",found[a],"times")
a is found 0 times
e is found 2 times
i is found 0 times
o is found 0 times
u is found 0 times

>>> print(found)
{'a': 0, 'e': 2, 'i': 0, 'o': 0, 'u': 0}
>>> for a in sorted(found):
	print(a,"is found",found[a],"time(s).")
a is found 0 time(s).
e is found 2 time(s).
i is found 0 time(s).
o is found 0 time(s).
u is found 0 time(s).

>>> print(found)
{'a': 0, 'e': 2, 'i': 0, 'o': 0, 'u': 0}
>>> print(found.items())
dict_items([('a', 0), ('e', 2), ('i', 0), ('o', 0), ('u', 0)])
>>> for a,b in sorted(found.items()):
	print(a,"is found",b,"time(s).")
a is found 0 time(s).
e is found 2 time(s).
i is found 0 time(s).
o is found 0 time(s).
u is found 0 time(s).

words=["a","e","i","o","u"]
shuru=input("请输入一个字符串")
found={}
found["a"]=0
found["e"]=0
found["i"]=0
found["o"]=0
found["u"]=0
for i in words:
    if i in words:
        found[i]+=1
        for k,v in sorted(found.items()):
            print(k,"is found",v,"time(s).")
请输入一个字符串aa
a is found 1 time(s).
e is found 0 time(s).
i is found 0 time(s).
o is found 0 time(s).
u is found 0 time(s).
a is found 1 time(s).
e is found 1 time(s).
i is found 0 time(s).
o is found 0 time(s).
u is found 0 time(s).
a is found 1 time(s).
e is found 1 time(s).
i is found 1 time(s).
o is found 0 time(s).
u is found 0 time(s).
a is found 1 time(s).
e is found 1 time(s).
i is found 1 time(s).
o is found 1 time(s).
u is found 0 time(s).
a is found 1 time(s).
e is found 1 time(s).
i is found 1 time(s).
o is found 1 time(s).
u is found 1 time(s).

>>> a={"a","e","i","o","u","a","u"}
>>> a
{'o', 'u', 'a', 'e', 'i'}

>>> a=set("fangzebin")
>>> a
{'g', 'n', 'f', 'a', 'z', 'b', 'e', 'i'}

>>> b=sorted(a)
>>> b
['a', 'b', 'e', 'f', 'g', 'i', 'n', 'z']
>>> c=list(b)
>>> c
['a', 'b', 'e', 'f', 'g', 'i', 'n', 'z']

d=sorted(list(a))
>>> d
['a', 'b', 'e', 'f', 'g', 'i', 'n', 'z']

>>> a={'a','b','c','d','f'}
>>> b={'g','h','i','j','k'}
>>> c=a.union(b)
>>> c
{'g', 'f', 'a', 'h', 'k', 'c', 'b', 'd', 'i', 'j'}

>>> name="fangzebin"
>>> name
'fangzebin'
>>> a=set(name)
>>> a
{'g', 'n', 'f', 'a', 'z', 'b', 'e', 'i'}
>>> c=a.union(b)
>>> c
{'g', 'n', 'f', 'a', 'z', 'h', 'k', 'b', 'e', 'i', 'j'}

>>> a={'a','b','c','d','e'}
>>> b={'a','c'}
>>> c=a.difference(b)
>>> c
{'b', 'e', 'd'}

>>> d=a.intersection(b)
>>> d
{'a', 'c'}