class Screen(object):
#get和set用一个名字,用装饰器区分,且要和实例使用时的名字一样
@property
def width(self):
return self._width
@width.setter
def width(self,vlwid):
if not isinstance(vlwid,int):
return ValueError('width must be an int')
elif vlwid < 0:
return ValueError('width must over 0')
else:
self._width = vlwid
def height(self):
return self._height
@height.setter
def height(self,vlheight):int
if not isinstance(vlheight,int):
elif vlheight < 0:
self._height = vlheight
def resolution(self):
return self._height * self._width
Sign in to make a reply
YOUTH
class Screen(object):
#get和set用一个名字,用装饰器区分,且要和实例使用时的名字一样
@property
def width(self):
return self._width
@width.setter
def width(self,vlwid):
if not isinstance(vlwid,int):
return ValueError('width must be an int')
elif vlwid < 0:
return ValueError('width must over 0')
else:
self._width = vlwid
@property
def height(self):
return self._height
@height.setter
def height(self,vlheight):int
if not isinstance(vlheight,int):
return ValueError('width must be an int')
elif vlheight < 0:
return ValueError('width must over 0')
else:
self._height = vlheight
@property
def resolution(self):
return self._height * self._width