2022-10-08 学习Python-Day16

wyh551202

国庆归来，学习类与对象开始P59-P61

1. ###########################################P59 对象与类
   
2. '''
   
3. 20221008
   
4. '''
   
5. class Turtle:
   
6.     head=1
   
7.     eyes=2
   
8.     legs=4
   
9.     shell=True
   
10.     def crawl(self):
    
11.         print('11')
    
12.     def run(self):
    
13.         print('22')
    
14.     def bite(self):
    
15.         print('33')
    
16.     def eat(self):
    
17.         print('44')
    
18.     def sleep(self):
    
19.         print('55')
    
20. t1 =Turtle()
    
21. print(t1.head)
    
22. t1.crawl()
    
23. t2=Turtle()
    
24. t2.legs=321
    
25. print(t2.legs)
    
26. print(t1.legs)
    
27. t1.mouth=5
    
28. print(t1.mouth)
    
29. print(dir(t1))
    
30. print(dir(t2))
    
31. x=520
    
32. print(type(x))
    
33. y='Fishc'
    
34. print(type(y))
    
35. class C:
    
36.     def hello(self):
    
37.         print(self)
    
38. c=C()
    
39. print(c)
    
40. c.hello()
    
41. ###########################################P60 对象与类
    
42. class A:
    
43.     x=520
    
44.     def hello(self):
    
45.         print('你好，我是A')
    
46. class B(A):
    
47.     pass
    
48. b=B()
    
49. print(b.x)
    
50. b.hello()
    
51. class B(A):
    
52.     x=880
    
53.     def hello(self):
    
54.         print('你不好，我是B')
    
55. b=B()
    
56. b.hello()
    
57. print(isinstance(b,B))
    
58. print(isinstance(b,A))
    
59. print(issubclass(A,B))
    
60. print(issubclass(B,A))
    
61. class B:
    
62.     x=520
    
63.     y=250
    
64.     def hello(self):
    
65.         print('你好，我是B')
    
66. class C(A,B):
    
67.     pass
    
68. c=C()
    
69. print(c.x)
    
70. print(c.y)
    
71. c.hello()
    
72. class Turtle:
    
73.     def say(self):
    
74.         print('不不不')
    
75. 
    
76. class Cat:
    
77.     def say(self):
    
78.         print('喵喵喵')
    
79. 
    
80. class Dog:
    
81.     def say(self):
    
82.         print('汪汪汪')
    
83. 
    
84. class Garden:
    
85.     t=Turtle()
    
86.     c=Cat()
    
87.     d=Dog()
    
88.     def say(self):
    
89.         self.t.say()
    
90.         self.c.say()
    
91.         self.d.say()
    
92. g=Garden()
    
93. print(g)
    
94. g1=Garden
    
95. print(g1)
    
96. g.say()
    
97. ###########################################P60 对象与类
    
98. d =C()
    
99. d.x=2500
    
100. c.x=250
     
101. print(d.__dict__)
     
102. print(c.__dict__)
     
103. d.y=660
     
104. print(d.__dict__)
     
105. class C:
     
106.     def set_x(self,v):
     
107.         self.x=v
     
108. c=C()
     
109. print(c.__dict__)
     
110. c.set_x(5200)
     
111. print(c.__dict__)
     
112. class C:
     
113.     x=100
     
114.     def set_x(self,v):
     
115.         x=v
     
116. c=C()
     
117. c.set_x(250)
     
118. print(c.x)
     
119. C.x=2500
     
120. print(c.x)

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