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<a href="00874.html" target="topic">第四章 数组</a>, <a href="00901.html" target="topic">主题</a></div>
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4.6 动态数组</div>
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动态数组是一维的非压缩数组，它的尺寸可以在运行时设置或改变。动态数组的存储空间只有当数组在运行时被显式产生之后才会存在。 </p>
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动态数组的声明语法如下： </p><div class="Element170">
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<div class="Element13"><div class="Element12" id="code00118"><pre class="Element12">data_type array_name <span style="color: #800080">[];</span></pre></div></div>
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其中<i>data_type</i>是数组元素的数据类型。 动态数组与固定尺寸数组支持相同的数据类型。例如： </p><div class="Element170">
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<div class="Element13"><div class="Element12" id="code00119"><pre class="Element12"><span style="color: #0000FF">bit</span> <span style="color: #800080">[</span><span style="color: #FF0000">3</span><span style="color: #800080">:</span><span style="color: #FF0000">0</span><span style="color: #800080">]</span> nibble<span style="color: #800080">[];</span> <span style="color: #008000">// 4位向量的动态数组</span>
<span style="color: #0000FF">integer</span> mem<span style="color: #800080">[];</span> <span style="color: #008000">// integer类型的动态数组</span></pre></div></div>
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<span style="color: #0000FF">new</span><span style="color: #800080">[]</span>操作符用来设置或改变数组的尺寸。 </p>
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<span style="color: #0000FF">size</span><span style="color: #800080">()</span>内建方法返回数组的当前尺寸。 </p>
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<span style="color: #0000FF">delete</span><span style="color: #800080">()</span>内建方法清空数组的所有元素以便产生一个空数组（零尺寸）。 </p></div>
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<a href="00874.html" target="topic">第四章 数组</a></p></div>
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描述 </div></td></tr><tr>
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<a href="00527.html" target="topic">4.6.1 new[]</a> </div></td><td class="Element206" valign="top" width="50%">
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内建函数<span style="color: #0000FF">new</span>为动态数组分配存储空间，并使用缺省值或可选参数提供的值对最新分配的数组元素进行初始化。<br><br><span style="color: #0000FF">new</span>函数的原型如下： </div></td></tr><tr>
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<a href="00528.html" target="topic">4.6.2 size()</a> </div></td><td class="Element206" valign="top" width="50%">
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<span style="color: #0000FF">size</span><span style="color: #800080">()</span>方法的原型如下： </div></td></tr><tr>
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<a href="00529.html" target="topic">4.6.3 delete()</a> </div></td><td class="Element206" valign="top" width="50%">
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<span style="color: #0000FF">delete</span><span style="color: #800080">()</span>方法的原型如下： </div></td></tr></table></div></div>
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<a href="00874.html" target="topic">第四章 数组</a>, <a href="00901.html" target="topic">主题</a></div>
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