.1" data-path="lesson-5.html"><a href="lesson-5.html#函数的调用"><i class="fa fa-check"></i><b>5.9.1</b> 函数的调用</a></li>
<li class="chapter" data-level="5.9.2" data-path="lesson-5.html"><a href="lesson-5.html#自定义函数"><i class="fa fa-check"></i><b>5.9.2</b> 自定义函数</a></li>
<li class="chapter" data-level="5.9.3" data-path="lesson-5.html"><a href="lesson-5.html#函数的组成"><i class="fa fa-check"></i><b>5.9.3</b> 函数的组成</a></li>
<li class="chapter" data-level="5.9.4