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xian_wen

#1 Created at ... [Delete] [Delete and Lock User] 
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._width * self._height

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#2 Created at ... [Delete] [Delete and Lock User]

你这样写虽然没错，但你忘了使用@property的出发点就是为了在setter中添加判断逻辑。要不然直接添加变量不好吗。

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