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75 lines
3.4 KiB
HTML
75 lines
3.4 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<head>
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<meta http-equiv="content-type" content="text/html; charset=UTF-8">
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<title>设置所有bc数学函数的默认小数点保留位数</title>
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</head>
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<body class="docs"><div id="layout">
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<div id="layout-content"><div id="function.bcscale" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">bcscale</h1>
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<p class="verinfo">(PHP 4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">bcscale</span> — <span class="dc-title">设置所有bc数学函数的默认小数点保留位数</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.bcscale-description">
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<h3 class="title">说明</h3>
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<div class="methodsynopsis dc-description">
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<span class="methodname"><strong>bcscale</strong></span>
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( <span class="methodparam"><span class="type">int</span> <code class="parameter">$scale</code></span>
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) : <span class="type">bool</span></div>
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<p class="para rdfs-comment">
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设置所有bc数学函数的未设定情况下得小数点保留位数.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.bcscale-parameters">
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<h3 class="title">参数</h3>
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<p class="para">
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<dl>
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<dt>
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<code class="parameter">scale</code></dt>
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<dd>
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<p class="para">
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小数点保留位数.
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</p>
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</dd>
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</dl>
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</p>
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</div>
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<div class="refsect1 returnvalues" id="refsect1-function.bcscale-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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成功时返回 <strong><code>TRUE</code></strong>， 或者在失败时返回 <strong><code>FALSE</code></strong>。
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.bcscale-examples">
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<h3 class="title">范例</h3>
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<p class="para">
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<div class="example" id="example-4058">
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<p><strong>Example #1 <span class="function"><strong>bcscale()</strong></span> example</strong></p>
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<div class="example-contents">
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<div class="phpcode"><pre><span style="color: #000000">
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<span style="color: #0000BB"><?php<br /><br /></span><span style="color: #FF8000">// default scale : 3<br /></span><span style="color: #0000BB">bcscale</span><span style="color: #007700">(</span><span style="color: #0000BB">3</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">bcdiv</span><span style="color: #007700">(</span><span style="color: #DD0000">'105'</span><span style="color: #007700">, </span><span style="color: #DD0000">'6.55957'</span><span style="color: #007700">); </span><span style="color: #FF8000">// 16.007<br /><br />// this is the same without bcscale()<br /></span><span style="color: #007700">echo </span><span style="color: #0000BB">bcdiv</span><span style="color: #007700">(</span><span style="color: #DD0000">'105'</span><span style="color: #007700">, </span><span style="color: #DD0000">'6.55957'</span><span style="color: #007700">, </span><span style="color: #0000BB">3</span><span style="color: #007700">); </span><span style="color: #FF8000">// 16.007<br /><br /></span><span style="color: #0000BB">?></span>
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</span>
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</pre></div>
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</div>
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</div>
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</p>
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</div>
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</div></div></div></body></html> |