菱形继承

# ### 菱形继承 
'''
	Human
	
Man       Woman	

   Children
'''
class Human():
	pty = 111
	def feelT(self):
		print("远古人类天热了,脱毛1")
		print(self.pty)
		print("远古人类天冷了,长毛2")
	
class Man(Human):
	pty = 222
	def feelT(self):
		print("现代男性天热了,开空调3")
		super().feelT()
		print("现代男性天冷了,也开空调4")
	
class Woman(Human):
	pty = 333
	def feelT(self):
		print("现代女性天热了,穿比基尼5")
		super().feelT()
		print("现代女性天冷了,也穿比基尼,要风度,不要温度6")
	
class Children(Man,Woman):
	pty = 444
	def feelT(self):
		print("小孩天热了,他就吃冰棍哭7")
		super().feelT()
		print("小孩天冷了,他就吃奶奶哭8")

obj = Children()
obj.feelT()
# 731211
# 73511112
'''
# mro列表 :通过c3算法,把所有的继承关系按照列表的顺序呈现.
# 语法:
类.mro() => 继承顺序列表
[
<class '__main__.Children'>, 
<class '__main__.Man'>, 
<class '__main__.Woman'>, 
<class '__main__.Human'>, 
<class 'object'>
]
super 就是默认按照mro列表的顺序,依次调用
用于解决多继承调用顺序混乱的问题
'''
lst = Children.mro()
print(lst)


# 判断是否是子父关系 [有血缘关系即可] issubclass
res = issubclass(Children,Man)
res = issubclass(Children,Human)
# 满足一个条件,即返回真
res = issubclass(Children,(Man,Woman))
print(res)


# 判断对象的类型 [有血缘关系即可] isinstance
res = isinstance(obj,Children)
res = isinstance(obj,Man)
res = isinstance(obj,(Human,Woman))
print(res)