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本文主要和大家分享python迭代模式实例详解,主要以代码的形式和大家分享,希望能帮助到大家。
# -*- coding: utf-8 -*- """ Created on Thu Mar 29 11:43:05 2018 @author: mz """ class Iterator(object): def Next(self): pass def HasNext(self): pass def First(self): pass def Forward(self): pass class CocreteIterator(Iterator): def __init__(self, aggregate): self._aggregate = aggregate def Next(self): return self._aggregate.Next() def HasNext(self): return self._aggregate.HasNext() def First(self): return self._aggregate.First() def Forward(self): return self._aggregate.Forward() class Aggregate(object): def CreateIterator(self): pass def Next(self): pass def HasNext(self): pass def First(self): pass def Attach(self, obj): pass def Forward(self): pass class ConcreteAggregate(object): def __init__(self): self._lst = [] self._index = 0 def CreateIterator(self): return CocreteIterator(self) def Next(self): return self._lst[self._index] def HasNext(self): return self._index <p>运行结果:</p><pre class="html">1 2 a b c 45
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