1 >>> ls = list('132231321132')
 2 >>> ls
 3 ['1', '3', '2', '2', '3', '1', '3', '2', '1', '1', '3', '2']
 4 >>> ll=['123456']
 5 >>> ll
 6 ['123456']
 7 #增
 8 >>> ls.append(9)
 9 >>> ls
10 ['1', '3', '2', '2', '3', '1', '3', '2', '1', '1', '3', '2', 9]
11 #改
12 >>> ls.insert(0,'10')
13 >>> ls
14 ['10', '1', '3', '2', '2', '3', '1', '3', '2', '1', '1', '3', '2', 9]
15 #删
16 >>> ls.pop(0)
17 '10'
18 >>> ls
19 ['1', '3', '2', '2', '3', '1', '3', '2', '1', '1', '3', '2', 9]
20 #查
21 >>> ls.index('3')
22 1
23 #统计
24 >>> ls.count('1')
25 4
26 >>> ls.count('3')
27 4
28 >>> 

 1 #list()+zip()建立字典
 2 >>> dic=dict(zip([1,2,3],['98','100','88']))
 3 >>> dic
 4 {1: '98', 2: '100', 3: '88'}
 5
 6 #增update()
 7 >>> dic2={4:'95'}
 8 >>> dic.update(dic2)
 9 >>> dic
10 {1: '98', 2: '100', 3: '88', 4: '95'}
11
12 #删pop()/del a[k]
13 >>> dic.pop(2)
14 '100'
15 >>> dic
16 {1: '98', 3: '88', 4: '95'}
17 #del
18 >>> dic
19 {1: '120', 3: '88', 4: '95'}
20 >>> del dic[3]
21 >>> dic
22 {1: '120', 4: '95'}
23
24 #改insert()
25 >>> dic[1]='120'
26 >>> dic
27 {1: '120', 3: '88', 4: '95'}
28
29 #查get()
30 >>> dic
31 {1: '98', 3: '88', 4: '95'}
32 >>> dic.get(4)
33 '95'
34 >>> dic.get(5,'没有')
35 '没有'
36 #直接查也可以
37 >>> dic[4]
38 '95'
39
40 # 返回一个list：keys()/values()/items()
41 >>> dic.keys()
42 dict_keys([1, 3, 4])
43 >>> dic.values()
44 dict_values(['98', '88', '95'])
45
46 #将dict中的元素变为元祖items()
47 >>> dic.items()
48 dict_items([(1, '98'), (3, '88'), (4, '95')])

 1 #list
 2 ls=list('654561')
 3 #set
 4 st={'100','100','98','95','96','96'}
 5 #tuple
 6 tup='a','b',1,st
 7 #('a', 'b', 1, {'98', '96', '100', '95'})
 8 #dict
 9 dic={'a':'blue','b':'red','c':'white'}
10
11 print('遍历list'.center(50,'='))
12 for i in ls:
13     print(i,end=' ')
14 print('\n')
15 print('遍历set'.center(50,'='))
16 for i in st:
17     print(i,end=' ')
18 print('\n')
19 print('遍历tuple'.center(50,'='))
20 for i in tup:
21     print(i,end=' ')
22 print('\n')
23 print('遍历dict'.center(50,'='))
24 for (k,v) in dic.items():
25     print('dict[%s]='%k,v)

  1 #待分析字符串，分解提取单词，大小写 txt.lower()，分隔符'.,:;?!-_’，计数字典，排序list.sort()，输出TOP(10)
  2 song='''
  3 Oh woah
  4 Oh woah
  5 Oh woahohhohh
  6
  7 You know you love me, I know you care
  8 You shout whenever, and I'll be there
  9 You want my love, you want my heart
 10 And we will never ever ever be apart
 11 Are we an item? Girl quit playing
 12 We're just friends, what are you saying
 13 Said there's another and look right in my eyes
 14 My first love broke my heart for the first time
 15 And I was like
 16
 17 Baby, baby, baby, oh like
 18 Baby, baby, baby, no like
 19 Baby, baby, baby, oh
 20 I thought you'd always been mine, mine
 21 Baby, baby, baby, oh like
 22 Baby, baby, baby, no like
 23 Baby, baby, baby, oh
 24 I thought you'd always been mine, mine
 25 Oh, Oh
 26
 27 For you, I would have done whatever
 28 And I just can't believe we ain't together
 29 And I wanna play it cool, but I'm losing you
 30 I'll buy you anything, I'll buy you any ring
 31 And I'm in pieces, baby fix me
 32 And you'll shake me till you wake me from this bad dream
 33 I'm going down, down, down, down
 34 And I just can't believe my first love won't be around
 35 And I'm now like
 36
 37 Baby, baby, baby, oh like
 38 Baby, baby, baby, no like
 39 Baby, baby, baby, oh
 40 I thought you'd always been mine, mine
 41 Baby, baby, baby, oh like
 42 Baby, baby, baby, no like
 43 Baby, baby, baby, oh
 44 I thought you'd always been mine, mine
 45
 46 When I was 13 I had my first love
 47 There was nobody that compared to my baby
 48 And nobody came between us or could ever come above
 49 She had me going crazy
 50 Oh I was starstruck
 51 She woke me up daily don't need no starbucks
 52 She made my heart pound
 53 Asking for a beat when I see her in the street
 54 And at school on the playground
 55 But I really wanna see her on the weekend
 56 She knows she got me dazy
 57 Cause she was so amazing
 58 And now my heart is breaking
 59 But I'll just keep on saying
 60
 61 Baby, baby, baby, oh like
 62 Baby, baby, baby, no like
 63 Baby, baby, baby, oh
 64 I thought you'd always been mine, mine
 65 Baby, baby, baby, oh like
 66 Baby, baby, baby, no like
 67 Baby, baby, baby, oh
 68 I thought you'd always been mine, mine
 69 Now I'm all gone
 70 Now I'm all gone
 71 Now I'm all gone
 72 Now I'm all gone
 73 I am gone
 74
 75 '''
 76 #1.全文转为小写
 77 song=song.lower()
 78
 79 #2.去除标点符号
 80 for i in ',.?!\n':
 81     song=song.replace(i,' ')
 82
 83 #3.分解提取单词
 84 words=song.split(' ')#将字符串以' '为依据划分为一个个单词
 85
 86 #expend={'in','and','so','i','ll','is','her','are','a','an'}
 87 #for i in expend:
 88 #    songs=words.replace(i,'*')
 89
 90 #4.做一个空字典计数
 91 dic={}
 92 keys=set(words)#用数组的独立性取出字典的key值
 93 for i in keys:
 94     dic[i]=words.count(i)#dic[i]输出key值
 95
 96 #5.排序
 97 tupleee=list(dic.items())
 98 tupleee.sort(key=lambda x:x[1],reverse=True)
 99
100 #6.输出TOP(10)
101 for i in range(10):
102     print(tupleee[i])