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<h1 id="33">3.3. 小结<a class="headerlink" href="#33" title="Permanent link">&para;</a></h1>
<ul>
<li>整数 byte, short, int, long 、浮点数 float, double 、字符 char 、布尔 boolean 是计算机中的基本数据类型,占用空间的大小决定了它们的取值范围。</li>
<li>在程序运行时,数据存储在计算机的内存中。内存中每块空间都有独立的内存地址,程序是通过内存地址来访问数据的。</li>
<li>数据结构主要可以从逻辑结构和物理结构两个角度进行分类。逻辑结构反映了数据中元素之间的逻辑关系,物理结构反映了数据在计算机内存中的存储形式。</li>
<li>常见的逻辑结构有线性、树状、网状等。我们一般根据逻辑结构将数据结构分为线性(数组、链表、栈、队列)和非线性(树、图、堆)两种。根据实现方式的不同,哈希表可能是线性或非线性。</li>
<li>物理结构主要有两种,分别是连续空间存储(数组)和离散空间存储(链表),所有的数据结构都是由数组、或链表、或两者组合实现的。</li>
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