使用@property 改变get和set

'''
使用@propety 装饰器将一个方法变成属性
'''

# -*- coding: utf-8 -*-

class Screen(object):
@property
def width(self):
return self._width
@width.setter
def width(self,value):
self._width=value
@property
def heigth(self):
return self._height
@heigth.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