面向对象编程的思想

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    <p id="title"><span class="clicked">游戏</span><span>旅行</span><span>音乐</span></p>
    <ul class="info" id="info">
        <li class="select">GTA5、孤岛惊魂</li>
        <li>澳大利亚、西藏</li>
        <li>暗里着迷、一生有你</li>
    </ul>
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