# -*- coding: utf-8 -*-#python 27#xiaodeng#python之函数用法__getitem__()#http://www.cnblogs.com/hongfei/p/3858256.html#__getitem__#如果类把某个属性定义为序列，可以使用__getitem__()输出序列属性中的某个元素.class FruitShop():     def __getitem__(self,i):         return self.fruits[i]#可迭代对象   if __name__ == "__main__":    shop = FruitShop()    print shop                              #__main__.FruitShop instance    shop.fruits = ["apple", "banana"]    print shop[1]                           #banana    for item in shop:        print item