ta-level="5.4" data-path="pandas.html"><a href="pandas.html#-2"><i class="fa fa-check"></i><b>5.4</b> 总结</a></li>
</ul></li>
<li class="chapter" data-level="6" data-path="data2file.html"><a href="data2file.html"><i class="fa fa-check"></i><b>6</b> 数据加载、存储与文件格式</a><ul>
<li class="chapter" data-level="6.1" data-path="data2file.html"><a href="data2file.html#section-6.1"><i class="fa fa-check"></i><b>6.1</b> 读写文本格式的数据</a></li>
<li class="chapter" data-level="6.2" da