class Screen(object):    @property    def width(self):        return self.__width    @width.setter    def width(self,value):        self.__width = value    @property    def height(self):        return self.__height    @height.setter    def height(self,value):        self.__height = value    @property    def resolution(self):        return self.__height * self.__widths = Screen()s.width = 1024s.height = 768print('resolution = ',s.resolution)if s.resolution == 786432:    print('测试通过')else:    print('测试失败')