<div style="padding:40px;color:#cbccc6"><h1>Sierpinski 地毯</h1><p>方形挖中心，递归 8 个子方形。</p><div style="padding:20px;background:#0d1017;border-left:3px solid #ffb454"><span class="katex-display"><span class="katex"><span class="katex-html" aria-hidden="true"><span class="mspace newline"></span><span class="base"><span class="strut" style="height:1em;vertical-align:-0.25em;"></span><span class="mord mathnormal">t</span><span class="mord mathnormal">e</span><span class="mord mathnormal">x</span><span class="mord mathnormal">t</span><span class="mord"><span class="mord">8</span><span class="mord cjk_fallback">个</span><span class="mord">1/3</span><span class="mord cjk_fallback">缩仿射</span></span></span></span></span></span></div><p style="color:#707a8c">该页面需要 JavaScript 进行交互式可视化。</p></div>