Inheritance
Object-Oriented Design
代码复现！
注意instance属性可以随时更改,look at the instance, then the subclass before looking at the superclass
Multiple Inheritance
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class A:
def __init__(self, x):
self.x = x
class B:
def __init__(self, y):
self.y = y
def __str__(self):
return f"B(y={self.y})"
class C(A, B):
def __init__(self, x, y):
super().__init__(x)
self.y = y
def __str__(self):
return f"C(x={self.x}, y={self.y})"
def f(self):
return self.x + self.y
c = C(1, 2)
print(c)
print(c.f())
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