python ------- @property，,学习python 首

python ------- @property，,学习python 首

学习python 首次打卡，@property

@property给一个Screen对象加上width和height属性，以及一个只读属性resolution

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        # test:s = Screen()s.width = 1024s.height = 768print(s.resolution)assert s.resolution == 786432, ‘1024 * 768 = %d ?‘ % s.resolution

python ------- @property