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.__width
方法:resolution里可以直接使用 self.width e.g.
@property def resolution(self): return self.width * self.__height
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伞内的星空
class Screen(object):