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<a href="http://www.gxitsky.com/article/1605230695195620" rel="bookmark" title="缓存淘汰算法(五)：LRU，LFU，FIFO详解与实现" data-toggle="tooltip" data-placement="bottom">缓存淘汰算法(五)：LRU，LFU，FIFO详解与实现</a>
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服务器内存有限，不可能持续地往内存中存入数据，就需要对内存中的数据进行淘汰处理，通过制定淘汰策略和算法以保证内存持续可用，内存中的数据价值最大化。<br>
常用的缓存淘汰策略主要有：FIFO-先进先出，FRU-最近最少使用，FLU-最近不常使用。
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<span class="date" title="文章发表日期" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-clock-o fa-fw"></i>2020-11-13</span>
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<a href="http://www.gxitsky.com/article/1602672546271166" rel="bookmark" title="数据结构与算法(四)：二叉堆 和 优先队列" data-toggle="tooltip" data-placement="bottom">数据结构与算法(四)：二叉堆 和 优先队列</a>
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二叉堆 是一种特殊的堆，本质上是一种完全二叉树。二叉堆有两个类型：最大堆 和 最小堆。优先队列通常采用二叉堆来实现。
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<span class="date" title="文章发表日期" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-clock-o fa-fw"></i>2020-10-14</span>
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树（tree）是一种数据结构，由是 n（n>=0） 个节点的组成一个有层次关系的有限集合。之所有称之为树，是因为其看起来像一棵倒持的树，，也就是说它是根朝上，叶子朝下的。
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<span class="date" title="文章发表日期" data-toggle="tooltip" data-placement="bottom"><i class="fa fa-clock-o fa-fw"></i>2020-10-14</span>
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<a href="http://www.gxitsky.com/article/1602671637125184" rel="bookmark" title="数据结构与算法(二)：栈 和 队列" data-toggle="tooltip" data-placement="bottom">数据结构与算法(二)：栈 和 队列</a>
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栈 和 队列 也是常见的数据结构。Java 里面的方法栈，消息队列 是 栈 和 队列 数据结构的实际应用。
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数组、链表、栈和队列、散列表是基础数据结构，几乎所有的高级开发语言都会涉及到这些数据结构，一些更复杂的数据结构也是基于基础数据结构的扩展。
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