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python ------- @property

2024-09-21 11:19:16   203人阅读

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

 

python ------- @property


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