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<section id="boolean-objects">
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<span id="boolobjects"></span><h1>布尔对象<a class="headerlink" href="#boolean-objects" title="永久链接至标题">¶</a></h1>
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<p>Python 中的布尔值是作为整数的子类实现的。只有 <code class="xref py py-const docutils literal notranslate"><span class="pre">Py_False</span></code> 和 <code class="xref py py-const docutils literal notranslate"><span class="pre">Py_True</span></code> 两个布尔值。因此，正常的创建和删除功能不适用于布尔值。但是，下列宏可用。</p>
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<dt id="c.PyBool_Check">
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int <code class="sig-name descname">PyBool_Check</code><span class="sig-paren">(</span><a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a><em> *o</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyBool_Check" title="永久链接至目标">¶</a></dt>
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<dd><p>如果 <em>o</em> 是 <code class="xref c c-data docutils literal notranslate"><span class="pre">PyBool_Type</span></code> 类型，则返回true。</p>
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<dt id="c.Py_False">
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<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="sig-name descname">Py_False</code><a class="headerlink" href="#c.Py_False" title="永久链接至目标">¶</a></dt>
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<dd><p>Python的 <code class="docutils literal notranslate"><span class="pre">False</span></code> 对象。该对象没有任何方法。它应该象其它使用引用计数管理的对象一样使用。</p>
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<dt id="c.Py_True">
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<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="sig-name descname">Py_True</code><a class="headerlink" href="#c.Py_True" title="永久链接至目标">¶</a></dt>
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<dd><p>Python的 <code class="docutils literal notranslate"><span class="pre">True</span></code> 对象。该对象没有任何方法。它应该象其它使用引用计数管理的对象一样使用。</p>
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<code class="sig-name descname">Py_RETURN_FALSE</code><a class="headerlink" href="#c.Py_RETURN_FALSE" title="永久链接至目标">¶</a></dt>
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<dd><p>从函数返回 <code class="xref py py-const docutils literal notranslate"><span class="pre">Py_False</span></code> 时，需要增加它的引用计数。</p>
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<code class="sig-name descname">Py_RETURN_TRUE</code><a class="headerlink" href="#c.Py_RETURN_TRUE" title="永久链接至目标">¶</a></dt>
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<dd><p>从函数返回 <code class="xref py py-const docutils literal notranslate"><span class="pre">Py_True</span></code> 时，需要增加它的引用计数。</p>
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<a class="reference internal" href="structures.html#c.PyObject" title="PyObject">PyObject</a>* <code class="sig-name descname">PyBool_FromLong</code><span class="sig-paren">(</span>long<em> v</em><span class="sig-paren">)</span><a class="headerlink" href="#c.PyBool_FromLong" title="永久链接至目标">¶</a></dt>
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<dd><em class="refcount">Return value: New reference.</em><p>根据 <em>v</em> 的实际值，返回一个 <code class="xref py py-const docutils literal notranslate"><span class="pre">Py_True</span></code> 或者 <code class="xref py py-const docutils literal notranslate"><span class="pre">Py_False</span></code> 的新引用。</p>
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最后更新于 12月 09, 2024.
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