1 class a:
2 def __init__(self):
3 print('a')
4
5 class b(a):
6 def __init__(self):
7 super().__init__()
8 print('b')
9
10 class c(a):
11 def __init__(self):
12 super().__init__()
13 print('c' )
14
15
16 class d(b,c):
17 pass
18
19 mm= d()
20 '''
21 a
22 c
23 b
24 '''
25
26 #Analyze this phenomenon
27 #After inheritance, only one Copy the code of the constructor, the latter will overwrite the former. That is, c's constructor will override b's
28
29 print ( ' = ' * 30 )
30
31 class a:
32 def __init__ (self):
33 print ( ' a')
34
35 class b(a):
36 def __init__(self): #2
37 super().__init__() #2
38 print('b')
39
40 class c(a):
41 def __init__(self): #3
42 super().__init__() #3
43 print('c' ) # 3
44
45 class e(b):
46 def __init__ (self):
47 super(). __init__ ()
48 print ( ' e ' )
49
50 class d(e,c):
51 pass
52
53 ddd = d()
54
55 '''
56 a
57 c
58 b
59 e
60 '''
61
62 #In the first example, the base classes of b and c are both a
63 #第二个例子中 e和c的基类不同了，但e的基类是b，b和c的基类都是 a ,e类实例化时没有继续往上实例化到a，是因为一个类一次只能实例化一个实例出来？