Python学习笔记——迭代器（RandSeq和AnyIter）

#coding:utf-8
#!/usr/bin/env python
'randSeq.py -- 迭代'

#从random模块里仅仅导入choice方法
from random import choice

class RandSeq(object):
def __init__(self,seq):
self.data = seq;

def __iter__(self):
return self;

def next(self):
return choice(self.data)

if __name__ == '__main__':
for eachItem in RandSeq(('rock','paper','scisc')):
print eachItem