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162 lines
8.4 KiB
HTML
162 lines
8.4 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>Divide numbers</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.gmp-div-q" class="refentry">
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<div class="refnamediv">
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<h1 class="refname">gmp_div_q</h1>
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<p class="verinfo">(PHP 4 >= 4.0.4, PHP 5, PHP 7)</p><p class="refpurpose"><span class="refname">gmp_div_q</span> — <span class="dc-title">Divide numbers</span></p>
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</div>
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<div class="refsect1 description" id="refsect1-function.gmp-div-q-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>gmp_div_q</strong></span>
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( <span class="methodparam"><span class="type"><a href="class.gmp.html" class="type GMP">GMP</a></span> <code class="parameter">$a</code></span>
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, <span class="methodparam"><span class="type"><a href="class.gmp.html" class="type GMP">GMP</a></span> <code class="parameter">$b</code></span>
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[, <span class="methodparam"><span class="type">int</span> <code class="parameter">$round</code><span class="initializer"> = GMP_ROUND_ZERO</span></span>
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] ) : <span class="type"><a href="class.gmp.html" class="type GMP">GMP</a></span></div>
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<p class="para rdfs-comment">
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Divides <code class="parameter">a</code> by <code class="parameter">b</code> and
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returns the integer result.
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</p>
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</div>
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<div class="refsect1 parameters" id="refsect1-function.gmp-div-q-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">a</code></dt>
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<dd>
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<p class="para">
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The number being divided.
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</p>
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<p class="para">可以是一个 GMP
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数据 <span class="type"><span class="type resouce">resouce</span></span>，或一个可以转换为数值的字符串。</p>
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</dd>
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<dt>
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<code class="parameter">b</code></dt>
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<dd>
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<p class="para">
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The number that <code class="parameter">a</code> is being divided by.
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</p>
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<p class="para">可以是一个 GMP
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数据 <span class="type"><span class="type resouce">resouce</span></span>，或一个可以转换为数值的字符串。</p>
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</dd>
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<dt>
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<code class="parameter">round</code></dt>
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<dd>
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<p class="para">
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The result rounding is defined by the
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<code class="parameter">round</code>, which can have the following
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values:
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<ul class="itemizedlist">
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<li class="listitem">
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<span class="simpara">
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<strong><code>GMP_ROUND_ZERO</code></strong>: The result is truncated
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towards 0.
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<strong><code>GMP_ROUND_PLUSINF</code></strong>: The result is
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rounded towards <em>+infinity</em>.
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</span>
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</li>
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<li class="listitem">
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<span class="simpara">
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<strong><code>GMP_ROUND_MINUSINF</code></strong>: The result is
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rounded towards <em>-infinity</em>.
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</span>
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</li>
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</ul>
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</p>
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<p class="para">可以是一个 GMP
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数据 <span class="type"><span class="type resouce">resouce</span></span>，或一个可以转换为数值的字符串。</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.gmp-div-q-returnvalues">
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<h3 class="title">返回值</h3>
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<p class="para">
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GMP 数值<span class="type"><span class="type 资源">资源</span></span>.
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</p>
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</div>
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<div class="refsect1 examples" id="refsect1-function.gmp-div-q-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-4068">
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<p><strong>Example #1 <span class="function"><strong>gmp_div_q()</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 />$div1 </span><span style="color: #007700">= </span><span style="color: #0000BB">gmp_div_q</span><span style="color: #007700">(</span><span style="color: #DD0000">"100"</span><span style="color: #007700">, </span><span style="color: #DD0000">"5"</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">gmp_strval</span><span style="color: #007700">(</span><span style="color: #0000BB">$div1</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$div2 </span><span style="color: #007700">= </span><span style="color: #0000BB">gmp_div_q</span><span style="color: #007700">(</span><span style="color: #DD0000">"1"</span><span style="color: #007700">, </span><span style="color: #DD0000">"3"</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">gmp_strval</span><span style="color: #007700">(</span><span style="color: #0000BB">$div2</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$div3 </span><span style="color: #007700">= </span><span style="color: #0000BB">gmp_div_q</span><span style="color: #007700">(</span><span style="color: #DD0000">"1"</span><span style="color: #007700">, </span><span style="color: #DD0000">"3"</span><span style="color: #007700">, </span><span style="color: #0000BB">GMP_ROUND_PLUSINF</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">gmp_strval</span><span style="color: #007700">(</span><span style="color: #0000BB">$div3</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$div4 </span><span style="color: #007700">= </span><span style="color: #0000BB">gmp_div_q</span><span style="color: #007700">(</span><span style="color: #DD0000">"-1"</span><span style="color: #007700">, </span><span style="color: #DD0000">"4"</span><span style="color: #007700">, </span><span style="color: #0000BB">GMP_ROUND_PLUSINF</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">gmp_strval</span><span style="color: #007700">(</span><span style="color: #0000BB">$div4</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<br /><br /></span><span style="color: #0000BB">$div5 </span><span style="color: #007700">= </span><span style="color: #0000BB">gmp_div_q</span><span style="color: #007700">(</span><span style="color: #DD0000">"-1"</span><span style="color: #007700">, </span><span style="color: #DD0000">"4"</span><span style="color: #007700">, </span><span style="color: #0000BB">GMP_ROUND_MINUSINF</span><span style="color: #007700">);<br />echo </span><span style="color: #0000BB">gmp_strval</span><span style="color: #007700">(</span><span style="color: #0000BB">$div5</span><span style="color: #007700">) . </span><span style="color: #DD0000">"\n"</span><span style="color: #007700">;<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 class="example-contents"><p>以上例程会输出：</p></div>
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<div class="example-contents screen">
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<div class="cdata"><pre>
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20
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0
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1
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0
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-1
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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 class="refsect1 notes" id="refsect1-function.gmp-div-q-notes">
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<h3 class="title">注释</h3>
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<blockquote class="note"><p><strong class="note">Note</strong>:
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<p class="para">
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This function can also be called as <span class="function"><a href="gmp_div.html" class="function">gmp_div()</a></span>.
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</p>
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</p></blockquote>
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</div>
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<div class="refsect1 seealso" id="refsect1-function.gmp-div-q-seealso">
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<h3 class="title">参见</h3>
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<p class="para">
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<ul class="simplelist">
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<li class="member"><span class="function"><a href="gmp_div_r.html" class="function" rel="rdfs-seeAlso">gmp_div_r()</a> - Remainder of the division of numbers</span></li>
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<li class="member"><span class="function"><a href="gmp_div_qr.html" class="function" rel="rdfs-seeAlso">gmp_div_qr()</a> - Divide numbers and get quotient and remainder</span></li>
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</ul>
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</p>
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</div>
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</div></div></div></body></html> |