li><li><a href="#32-last-modified--if-modified-since" class="table-of-contents__link toc-highlight">3.2 Last-Modified / If-Modified-Since</a></li><li><a href="#33-拓展知识冷门考点" class="table-of-contents__link toc-highlight">3.3 拓展知识（冷门考点）</a></li></ul></li><li><a href="#4-缓存的优缺点" class="table-of-contents__link toc-highlight">4. 缓存的优缺点</a></li></ul></li><li><a href="#参考资料" class="table-of-contents__link toc-highlight">参考资料</a></li></ul></