python之函式用法 setattr

#

-*- coding: utf-8 -*-
#python 27
#xiaodeng
#python之函式用法__setattr__
##用__setattr__函式重構方法
class
fruit():
def__init__
(self,color,price):
self.
__color =color
self.
__price =price
def__setattr__(self,name,value):#
重構方法__setattr__方法,沒有該方法會預設存在該方法
self.__dict__[name] = str('
xiaodeng,
')+str(value)  #為了看出區別，特意在__setattr__方法中加了str('xiaodeng')
if__name__ == "
__main__":
fruit = fruit("
blue
", 10)
print fruit                                 #
__main__.fruit instance
print fruit.__dict__
#print fruit.__dict__.get("
_fruit__price
")   #
xiaodeng,10
#給_fruit__price設定新的屬性
fruit.__dict__["
_fruit__color
"] = '
red'
print fruit.__dict__.get("
_fruit__color
")   #
red#
增加新的屬性和屬性值
fruit.__dict__['
name
']='
xiaodeng
'print fruit.__dict__
#

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