class Screen(object):
@property
def width(self):
return self._width
@width.setter
def width(self,value):
if value<0:
raise ValueError('Please enter a number greater than zero')
else:
self._width=value
def height(self):
return self._height
@height.setter
def height(self,value):
self._height=value
def resolution(self):
return self._width*self._height
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且看风吟0
class Screen(object):
@property
def width(self):
return self._width
@width.setter
def width(self,value):
if value<0:
raise ValueError('Please enter a number greater than zero')
else:
self._width=value
@property
def height(self):
return self._height
@height.setter
def height(self,value):
if value<0:
raise ValueError('Please enter a number greater than zero')
else:
self._height=value
@property
def resolution(self):
return self._width*self._height