#coding:utf-8
'''
1、菱形继承
当一个子继承多个父类时，多个父类最终继承了同一个类，称之为菱形继承
2、菱形继承的问题：
python2区分经典类与新式类，如果子的继承是一个菱形继承，那么经典类与形式的区别为？
经典类下查找属性：深度优先查找
新式类下查找属性：广度优先查找
'''
class G(object):
# def test(self):
# print('from G')
pass
class E(G):
# def test(self):
# print('from E')
pass
class B(E):
# def test(self):
# print('from B')
pass
class F(G):
# def test(self):
# print('from F')
pass
class C(F):
# def test(self):
# print('from C')
pass
class D(G):
# def test(self):
# print('from D')
pass
class A(B,C,D):
def test(self):
print('from A')
# pass
obj=A()
print(A.mro())
# obj.test() #A->B->E-C-F-D->G-object
