abs

名称:abs

分类:数学

所属语言:php

一句话介绍:绝对值。

实例

<span class="token php language-php"><span class="token delimiter important"><?php</span>
<span class="token keyword">echo</span><span class="token punctuation">(</span><span class="token function">abs</span><span class="token punctuation">(</span><span class="token number">6.7</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">echo</span><span class="token punctuation">(</span><span class="token function">abs</span><span class="token punctuation">(</span><span class="token operator">-</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token keyword">echo</span><span class="token punctuation">(</span><span class="token function">abs</span><span class="token punctuation">(</span><span class="token number">3</span><span class="token punctuation">)</span><span class="token punctuation">)</span><span class="token punctuation">;</span>
<span class="token delimiter important">?></span></span>

亲自试一试