Python学习笔记——迭代器（RandSeq和AnyIter）

1.RandSeq

#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