一.单继承
1.Python2
py2_super_single_inheritance.png
2.Python3
py3_super_single_inheritance.png
二.多继承
D -> B -> C -> A -> C -> B -> D
class A:
def __init__(self):
self.n = 2
def add(self, m):
print('third blood, {}'.format(m)) # third blood, 100
# this n is from D, self.n = 5
print('this n is from D, self.n = {}'.format(self.n))
self.n += m
print(self.n) # 105
class B(A):
def __init__(self):
self.n = 3
def add(self, m):
print('first blood, {}'.format(m)) # first blood, 100
super().add(m)
# this n is from B, self.n = 109
print('this n is from B, self.n = {}'.format(self.n))
self.n += 3
print(self.n) # 112
class C(A):
def __init__(self):
self.n = 4
def add(self, m):
print('second blood, {}'.format(m)) # second blood, 100
super().add(m)
# this n is from C, self.n = 105
print('this n is from C, self.n = {}'.format(self.n))
self.n += 4
print(self.n) # 109
class D(B, C):
def __init__(self):
self.n = 5
def add(self, m):
print(m) # 100
print(self.__dict__) # {'n': 5}
super().add(m)
# this n is from D, self.n = 112
print('this n is from D, self.n = {}'.format(self.n))
self.n += m
print(self.n) # 212
d = D()
d.add(100)
print((d.__dict__)) # {'n': 212}
