类的继承有两层意思,1改变2扩展
类内部能用,外部不能用,但是可以通过_people__来访问
__author__ = 'Linhaifeng'
class Room:
def __init__(self,name,owner,width,length,high):
self.name=name
self.owner=owner
self.__width=width
self.__length=length
self.__high=high
def tell_area(self): #此时我们想求的是面积
return self.__width * self.__length *self.__high
def tell_width(self):
return self.__width
r1=Room('卫生间','alex',100,100,10000)
# arear=r1.__width * r1.__length
print(r1.tell_area())