2022-08-30 学习Python-Day10

wyh551202

忙碌几天又回来充电学习了，补了下字典和集合P34-P41 ，课程已过一般还得继续加油

1. ###############################P37
   
2. ###############################P38
   
3. x={
   
4.     '吕布',
   
5.     '关羽'
   
6.     }
   
7. print(type(x))
   
8. y={
   
9.     '吕布':'口口布',
   
10.     '关羽':'关习习'
    
11.     }
    
12. print(type(y))
    
13. print(y['吕布'])
    
14. y['刘备'] ='刘baby'
    
15. print(y)
    
16. a={'吕布': '口口布', '关羽': '关习习', '刘备': '刘baby'}
    
17. print(a)
    
18. b=dict(吕布='口口布', 关羽='关习习',刘备='刘baby')
    
19. print(b)
    
20. c=dict([('吕布','口口布'),('关羽', '关习习'),('刘备', '刘baby')])
    
21. print(c)
    
22. d=dict({'吕布': '口口布', '关羽': '关习习', '刘备': '刘baby'})
    
23. print(d)
    
24. e=dict({'吕布': '口口布', '关羽': '关习习'},刘备='刘baby')
    
25. print(e)
    
26. f=dict(zip(['吕布','关羽','刘备'],['口口布', '关习习','刘baby']))
    
27. print(f)
    
28. d =dict.fromkeys('Fish',250)
    
29. print(d)
    
30. d['F']=70
    
31. print(d)
    
32. d['C']=67
    
33. print(d)
    
34. d.pop('s')
    
35. print(d)
    
36. d.pop('t','没有')
    
37. print(d.pop('t','没有'))
    
38. print(d.popitem())
    
39. print(d)
    
40. del d['i']
    
41. print(d)
    
42. d.clear()
    
43. print(d)
    
44. ###############################P39
    
45. d=dict.fromkeys('FishC')
    
46. d['s']=115
    
47. print(d)
    
48. d.update(F='70',C='67',t='10')
    
49. print(d)
    
50. print(d['C'])
    
51. print(d.get('c','这里没有c'))
    
52. d.setdefault('c','code')
    
53. print(d)
    
54. keys = d.keys()
    
55. values = d.values()
    
56. items = d.items()
    
57. print(keys)
    
58. print(values)
    
59. print(items)
    
60. d.pop('c')
    
61. print(keys)
    
62. print(values)
    
63. print(items)
    
64. e=d.copy()
    
65. print(e)
    
66. print(len(d))
    
67. print('C' in d)
    
68. print(list(d))
    
69. print(list(d.values()))
    
70. e=iter(e)
    
71. print(list(reversed(d.values())))
    
72. d={'吕布':{'语文':60,'数学':70,'英语':80},'关羽':{'语文':80,'数学':90,'英语':70}}
    
73. print(d['吕布']['数学'])
    
74. d={'吕布':[60,70,80],'关羽':[80,90,70]}
    
75. print(d['吕布'][1])
    
76. d={'F':70,'i':105,'s':115,'h':104,'C':67}
    
77. b={v:k for k,v in d.items()}
    
78. print(b)
    
79. c={v:k for k,v in d.items() if v>100}
    
80. print(c)
    
81. d={x:ord(x) for x in 'FishC'}
    
82. print(d)
    
83. d={x:y for x in [1,3,5] for y in [2,4,6]}
    
84. print(d)
    

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1. ###############################P40
   
2. print(type({}))
   
3. print(type({'one'}))
   
4. print(type({'one':1}))
   
5. a={'FishC','Python'}
   
6. print({s for s in 'FishC'})
   
7. print(set('FishC'))
   
8. s=set('FishC')
   
9. print('C' in s)
   
10. print(set([1,1,2,3,5]))
    
11. s=[1,1,2,3,5]
    
12. print( len(s)==len(set(s)))
    
13. t =s.copy()
    
14. s = set('FishC')
    
15. print(s.isdisjoint(set('Python')))
    
16. print(s.isdisjoint(set('JAVA')))
    
17. print(s.issuperset(set('Fish')))
    
18. print(s.union({1,2,3}))
    
19. print(s.intersection('Fish'))
    
20. print(s.difference('Fish'))
    
21. ###############################P41
    
22. t=frozenset('FishC')
    
23. print(t)
    
24. s=set('FishC')
    
25. print(s)
    
26. s.update([1,1],'23')
    
27. print(s)
    
28. s.intersection_update('FishC')
    
29. print(s)
    
30. s.symmetric_difference_update('Python')
    
31. print(s)
    
32. s.add('45')
    
33. print(s)
    
34. s.remove('o')
    
35. s.discard('aa')
    
36. s.clear()
    
37. print(hash(1.001))
    
38. print(hash((1,2,3)))
    

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