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交作业。。

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

class Screen(object):

@property
def resolution(self):
    return self._width*self._height

@property
def width(self):
    return self._width

@width.setter
def width(self,value):
    self._width = value

@property
def height(self):
    return height._width

@height.setter
def height(self,value):
    self._height = value

s = Screen() s.width = 1024 s.height = 768 print(s.resolution) assert s.resolution == 786432, '1024 * 768 = %d ?' % s.resolution

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