lass="fa fa-check"></i><b>4.3</b> 利用数组进行数据处理</a></li>
<li class="chapter" data-level="4.4" data-path="numpy.html"><a href="numpy.html#section-4.4"><i class="fa fa-check"></i><b>4.4</b> 用于数组的文件输入输出</a></li>
<li class="chapter" data-level="4.5" data-path="numpy.html"><a href="numpy.html#section-4.5"><i class="fa fa-check"></i><b>4.5</b> 线性代数</a></li>
<li class="chapter" data-level="4.6" data-path="numpy.html"><a href="numpy.html#section-4.6"><i class="fa fa-ch