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<p><a href="../basics/type-of-object-interfaces.html">之前学习过</a>,接口(Interfaces)可以用于对「对象的形状(Shape)」进行描述。</p>
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<p>这一章主要介绍接口的另一个用途,对类的一部分行为进行抽象。</p>
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<h2 id="%E7%B1%BB%E5%AE%9E%E7%8E%B0%E6%8E%A5%E5%8F%A3">类实现接口<a class="anchor" href="#%E7%B1%BB%E5%AE%9E%E7%8E%B0%E6%8E%A5%E5%8F%A3">§</a></h2>

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