#子类调用父类 # class People: # def __init__(self,name,age,sex): # self.name=name # self.age=age # self.sex=sex # def foo(self): # print('from parent') # class Teacher(People): # def __init__(self,name,age,sex,salary,level): # # People.__init__(self,name,age,sex) #指名道姓地调用People类的__init__函数 # # #在python3中 # super().__init__(name,age,sex) #调用父类的__init__的功能，实际上用的是绑定方法 # # #在python2中 # # super(Teacher,self).__init__(name,age,sex) # # # self.salary=salary # self.level=level # def foo(self): # super().foo() # print('from child') # # # t=Teacher('egon',18,'male',3000,10) # # print(t.name,t.age,t.sex,t.salary,t.level) # t.foo() #继承 #coding:utf-8 # class A(object): # def test(self): # print('from A') # pass # class B(A): # # def test(self): # # print('from B') # pass # class C(A): # # def test(self): # # print('from C') # pass # class D(A): # # def test(self): # # print('from D') # pass # class E(B): # # def test(self): # # print('from E') # pass # class F(C): # # def test(self): # # print('from F') # pass # class G(D): # # def test(self): # # print('from G') # pass # class H(E,F,G): # # def test(self): # # print('from H') # pass # h=H() # # h.test=1 # # print h.__dict__ # #新式类的在这中继承结构下，属性的查找关系 # # h.test() # # # H->E->B->F->C-G-D-A 广度优先 # #mro # print(H.mro()) # # #coding:utf-8 # class A: # # def test(self): # # print('from A') # pass # class B(A): # # def test(self): # # print('from B') # pass # class C(A): # # def test(self): # # print('from C') # pass # class D(A): # # def test(self): # # print('from D') # pass # class E(B): # # def test(self): # # print('from E') # pass # class F(C): # # def test(self): # # print('from F') # pass # class G(D): # # def test(self): # # print('from G') # pass # class H(E,F,G): # # def test(self): # # print('from H') # pass # h=H() # #经典类的在这中继承结构下，属性的查找关系 # h.test() # H-E-B-A-F-C-G-D 深度优先 #封装 # class People: # def __init__(self,name,age,sex,height,weight,permission=False): # self.__name=name # self.__age=age # self.__sex=sex # self.__height=height # self.__weight=weight # self.permission=permission # def tell_info(self): # print(''' # ---------%s info # name：%s # age:%s # sex:%s # height:%s # weight:%s # ''' %(self.__name, # self.__name, # self.__age, # self.__sex, # self.__height, # self.__weight)) # @property # def name(self):#访问姓名 # return self.__name # @name.setter#，修改姓名并加上类型检查 # def name(self,val): # if not isinstance(val,str): # raise TypeError('must be str') # self.__name=val # @name.deleter#删除姓名 # def name(self): # if not self.permission: # raise PermissionError('不让删') # del self.__name # @property # def bmi(self): # res = self.__weight / (self.__height ** 2) # return res # p=People('z',18,'male',1.75,60) # p.tell_info()#访问人的详细信息 # print(p.name)#访问姓名 # p.name='x'#修改姓名 # p.permission=True # del p.name#删除姓名 # print(p.bmi)#访问人的bmi指数
设置自己的逻辑是封装真正的意义
