14.4多继承

多继承

# -*-coding:utf-8 -*-
__author__ = 'xiaojiaxin'
__file_name__ = '多继承'

#只有python和c++支持多继承
class grandf:
    def a(self):
        print("G1.a")

class father(grandf):
    def a1(self):
        print("F1.a")
				
class father2:
    def a(self):
        print("F2.a")

class son(father,father2):   #(father)表示这个孩子的父亲就是father
    pass

class son2(father2,father):
    pass

obj=son()
obj.a()
# G1.a

obj2=son2()
obj2.a()
# F2.a

总结: 多继承：从左到右找，一条道走到黑，同一个根时，根最后执行，self始终是方法的调用者。