class Screen(object): @property def width(self): return self._width @width.setter def width(self,value): if value<0: raise ValueError('the value must >0') self._width=value @property def height(self): return self.height @height.setter def height(self,value): if value<0: raise ValueError('the value must>0') self._height=value @property def resolution(self): return self._width*self._height
Sign in to make a reply
天问一生
class Screen(object): @property def width(self): return self._width @width.setter def width(self,value): if value<0: raise ValueError('the value must >0') self._width=value @property def height(self): return self.height @height.setter def height(self,value): if value<0: raise ValueError('the value must>0') self._height=value @property def resolution(self): return self._width*self._height